As for this year's GAB. I don't know what the lineup will be, but considering it will be a tri-branded event it has to be good.
WHAT!?? Have you been watching wrestling lately???
just kidding mate!!

But they have been producing crap after crap, and honestly, the only watchables PPVs this year: Royal rumble and WM23: both were criticized though.
I agree with you, and concerning the GAB lineup, dont expect too much surprises... Maybe a Mysterio return?(poster teaser syndrome, sorry...) and i'm really looking forward to see a Lashley vs Booker match for the no 1 contender spot(WWE belt) for me, this could be the feud of the summer, leading of course, a match at Summerslam between these 2 in a cage or some special stipulation.
Also, i see Orton vs foley, just to set up the return of Triple H on summerslam. concussion time is back, and even Foley cant do anything about it.
This leaves the WWE champion "Juan" Cena

without a contender.....WRONG!!!!! for those worried about some blond wrestler getting lost in the midcard, I got news (well, this is only my unpretentious opinion) I think Mr. KEENEEDYYYYY.. Kenedyyy

is going to wrestle and BEAT Cena at the GAB in a non-title match or some other shit... The BAD news: i think Kennedy will be in the line for "The Cena Treatment" after GAB, or what is the same, doing the J.O.B.
Other matches could include Edge vs Mysterio (see above) or maybe vs Kane...yes, you read well... With SD fucked up and Batista out of the title scene (for a little time i guess...see why)this could be the time for a Kane push until he actually win the title, ONLY to lose it to Edge again, or even worse......to Batista.
i see a Matt hardy vs finlay hand to hand match just to put over (is this possible??) Matt, and prepare him for a eventual WHC title shot in a near future. Your average SD match, but with a HUGE twist of fate finisher...
MVP should be on the card also, i guess a rematch for the US belt with Flair is the most logical thing.
finally, ECW will cooperate with ECW champ Jonny Nitro vs either Cm Punk or elijah burke.... both possibilities sounds good to me, Nitro is OK as a champ, i expect a successful defense, even with a Triple threat match.
That should be it, 7 matches...Wait!! almost forgot the new champ Candice michelle vs jillian hall, should be a good quick match, candice needs to deliver as a champion if she wants to keep that belt for more than 1 PPV.
Ok, now that should be it, 8 matches, just the exact amount for your average WWE PPV. nothing out of the ordinary, besides a possible Rey Mysterio return.