i don't know. I was waiting for tekken6. But it seems not so good. I have to choice Sf4?

Get Blazblue hands down.

If you need a stick though the Tekken 6 bundle stick is amazing. Much better than the SF4 Madcatz stick (I have both)

are there a stick just for a game?

huh? the fight sticks on PS3 will work for all the fighting games on PS3. They have the 8 button layout. SF4 uses 3/3, blazblue uses 3/1, tekken uses 2/2, etc etc. My only complaint is the gumball top opposed to a bat top on the stick.

You might as well wait for Super Street Fighter IV if your interested in Street Fighter IV.

If you have to get a fighting game now I'd go with either Tekken 6, BlazBlue: Calamity Trigger, or Super Street Fighter II Turbo HD Remix.

If you go SF2T then buy MVC2 also, both are still widely played tournament games, much more so than all the others.

But if you need a stick, the Tekken 6 bundle is worth the 150$ tag.

Sorry but Soul Calibur IV is so bad?

I'd say Super Street Fighter IV is the best choice overall. Blazeblue really didn't do it for me. I might get Tekken 6 out of nostalgia for the magnificent Tekken 3 but time will tell (and price drop).

BlazBlue

Tekken 6 is not a quality product. Dated graphics, terrible online, and a rubbish 3d final fight mode that you will have to play if you want to get endings for the characters. Core Tekken fighting is still awesome of course, but this package is not great. I would say only consider it if you plan to have friends over to play against.

For me SF4 is the best fighter this gen, but you may want to wait for SSF4. If you need a fighter now, I am sure you can find SF4 for cheap though.