Let's give gamers what they really want.  From least to greatest:

5.  Gamers versus Developers: Saga of  Unending Struggle

4.  Everquest Customer Service - I had to play it more than Everquest anyway.

3.  Leet-speak 'n Epix - To get them off of the roleplay games I like.

2. Patch Day - The hardest MMORPG to play.

1. QQ Beach &  M'own - It's what gamers do best.

My "Fave 5" in no particular order (Don't sue me please T-mobile)

Babylon 5.

Car Wars. anyone remember that old pen and paper game?  Auto-assault tried it but was WAY to watered down

Cyberpunk. another old pen and paper game.  Your typical post-apocolyptic genre.  (yes, I am dating myself mentioning these last 2)

Mechwarrior. I think this would be better as a PvP game tho.  I don't see much potential for PvE.

Everybody Loves Raymond Online.  Okay - this is not serious - I just couldn't think of a 5th.

1. A proper WWII MMOFPS in the style of planetside.

2. Cyperbunk.  (like the PnP)

3. Motorcity Online2

1. Stargate Worlds MMO
--I am really looking forward to this one...

2. Dungeon Siege MMO
--A fun, very basic game. Plays much like Guild Wars, actually. One of the things that made this game fun was that players could create chapters/campaigns that you could download and play. I would love to see an MMO with that kind of angle.

3. Guild Wars 2 MMO
--This one ought to be good, but it won't be ready till 2009 at the soonest. :(

4. Titan Quest MMO
--Would love to see a well-made mythology/ancient-world MMO. I was really bummed when Gods and Heroes bit the dust. :(

5. Firefly MMO
--This would be a fun setting for an MMO, imo. I hope it happens some day.

I'm also keeping an eye on: ... Fallen Earth, Warhammer Online, Earthrise, and Worldshift, as well as the Free-to-Play MMOs Mythos and Battlefield Heroes.

1. fallout was a good idea. that was fun

2. AC3, but after the abysmal AC2 i dont think turbine would touch that even with unlimited funds.

3. might play AoC until...

4. TCoS.  /e prays to the gods of MMO's for patience.

1 - Discworld MMO - anything is really possible with this universe

2 - Babylon 5  MMO - again strong background, different races lots of potential

3 - MMO based on David Gemmel books would be tops

4 - An MMO based around the Witcher series of books, the game was not bad, and i liked the story in it .  allround it has some has some potential

5 - Dune MMO could be really good

1. Dune (which appears to be getting the most votes)

2. Planet of the apes

3. Flash Gordon (based off the comic, not the horrible new show.. endless posibllties wit this IP )

4. Shadow Run / Cyber punk

5 Dr Who, or Time Machine

Babylon 5

Dragon riders of Pern

THe Sword of SHanarra

Star trek

A revamped Everquest

1. Star Wars MMO. Set in the Old Republic era.

2. Forgotten Realms Online.

3. Ultima Online 2. (In a hypothetical situation where Richard Garriott gets insanely rich after discovering the first alien race, comes back to earth, and buys the Ultima IP back from EA and refounds OSI.)

4. Cyberpunk/Dystopian setting MMO. Open ended, skill based, virtual world-esque.

5. Starcraft (Not really an MMO, but an online action RPG.)

i just thought of another one that would work quite well, anyone remember

Arcanum: Of Steamworks and Magick Obscura

a steampunk meets high fantasy genre, at the start of an industrial revolution, but magic is still used, would have quite a bit of potential

1 A quality remake of earth and beyond, and definatly not owned by ea-games.

1. Kotor online by bioware

2. Dune mmo

3. old kingdom (garth nix) mmo

4. any DECENT fully FPS MMO

5. any DECENT looting MMO and player run ecconomy

best would be a mmo with loot and a FPS combat system (a la oblivion), set in 1,2 or 3 universe

1. A steampunk MMO based on some alternate Earth history, with a DDO-like combat system.

2. An MMO based on the Napoleonic Wars.

3. An MMO set in feudal Japan.

4. A Dungeons and Dragons MMO set in an open world. (maybe a DDO sequel?)

5. Stargate Worlds.

5. Babylon 5, with JMS as Executive Producer and integrated real physics space combat for the starfuries.

4. Dune, and release the hounds if Brian Herbert goes anywhere near it.

3. Larry Niven's Known Space, especially Ringworld.

2. Classic Traveller.

1. Barsoom, with designs by Michael Whelan.

I think all mine may have been said, but for one. As you can tell I'm was heavy in pnp as a kid and really have fond memories.

1 Gangbusters.. old TSR game based in the era of Al Capone. Chances for lots of classes and factions. Would make for very interesting pvp.

2 Gamma World.. another old TSR game. I think there are so many possibilities with this one, I'm really surprised no one has already tried it. (or they did and I missed it)

3 Autoduel.. the Steve Jackson pnp RPG based on Car Wars. I would love this game.

4 Mechwarrior.. Merging good mech gameplay with with great interaction, this game would rock. Think Eve, with giant robots, add a little "out of the pod" action, and I think it would be a winner.

5 Sundog.. A great game I remember from my 1040ST, had the elements of a great mmo already there; space combat, resource gathering and trading, exploration, ground combat, etc.  Add in a little pc interaction, update  the concepts, and away  we go...

Please note the above statements are being written by a man who remembers all the fun had playing the aforementioned games as a kid, but does not remembers the many defects most of them surely had.