I'm pretty sure that their has been a couple of these topics, but:

"Loading Screens must be way faster"

faster block response so u cant be hit repeatedly before your fighter finally covers up because it just makes the game look stupid

Turn off auto-save in career mode...

oh where to start I know all the scrubs on this forum will completely disagree but hey thats what scrubs do.

get rid of the stamina meter, or at least make it so that you can't see your opponents.
find a new system for transition blocking. the current one makes fights skilless and boring.
Improve striking, yes greco roman wrestling allstars but striking is a major factor in MMA.
better career mode with more nicknames and looks
better CAF system for online uses, get rid of the scrubby super CAFs
more risk vs reward if someone flicks up to try and grab my hook or kick and miss-times it they should recieve a lot more damage than normal.
for the love of god add more fighting styles or allow us to crosstrain more. a kickboxer that doesn't use hooks, boxers that can't superman punch.

ill stop here and let you all continue to keep your head in the sand and just blow it off me being skilless lol.

I like the idea of receiving alot more damage when you miss grabbing a punch or kick. It would make stand up fighting alot more interesting. I also think they need to improve the double underhooks clinch for guys like Hendo. In his fights he gets that position, puts you on the fence, and throws powerful knees.

Yes please do that nothing annoys me more than this is the game even quitters/not finding matches fast enough.

I am just glad they've got some competition now so we will be seeing a better game. I know some people say THQ wrestling games barely ever change it's because they have no competition so they have to pick up the boots this time and fix all the errors from the previous version add tons of animations, and make TUF feature online and offline because I think that is going to be the major selling point.

Honestly, I think 2010 should be an amazing game from all aspects. They've got a year under their belt, they ignored fixing issues with this game (so it looks like the next is a huge improvement), and they've now got a chance to make EA look silly.

Well, what I should say is, if the next installment ISN'T amazing, something went very wrong.

These Are My Top 5 Personal Recommendations In Each Of The Two Most Important Areas:

CREATE-A-FIGHTER
Walk Out Scenes PLEASE!!!(Maybe Even Be Able To Upload Your Own Intro Song??) --- Team/Sponsor Banners(Done The Same Way As The Trunks) --- More Nicknames/Fighting Out Of Cities --- Longer Career Mode(And Actual Age Progression) --- Be Able To Choose Fighter Attitude/Demeanor(Ranging From Say Arrogant/Amped To Focused/Laid Back, And This Would Dictate Everything From Walk Out Movements To Victory Celebrations).

GAMEPLAY
More Fictional/Actual Fighters --- A Couple More Fighting Styles/Grappling Styles/Submissions(At Least More Variation In Fighter Stances) --- Wider Variety Of Take Downs --- Tweaking Head Kicks(Yes Head Kicks Can Be Devastating But They Are Far Too Easy To Land In The Game) --- Age/Career Progression For All Fighters(Certain Younger/Fictional Characters Grow And Improve/Older Characters Decline With Age And Eventually Retire).

SPECIAL CONSIDERATION
Sponsor Shirts(Worn During Walk Out/Fight Decision/Media Events) --- Longer/More Realistic Times Between Matches(This Of Course Would Mean Tweaking Out The Training/Sparring Points You Can Earn) --- Customizable Entourage/Corner --- Head Movements(Even If You Have Little Or No Control Over It, It Will Still Make Fights Look More Realistic) --- Option To Eventually Form Your Own Camp(Maybe Once You Reach A Certain Stage In Your Career).

Just so you know, there's already a thread like this that the admin has stickied. Continue with this one if you want, but I'd also go ahead and post your requests in that thread as well since it's more likely to be seen there.