I can tell you what to get and I can also tell you what to avoid. I've probably gotten about dozen different sets of tires on the random car's I've owned over the past few years.
Best bang for the buck in terms of summer tires is the Yoko S.Drives. I have them on one of our other cars.(275/35/20)
Love em. Tread pattern is nice grip is really good, even in the rain. Much better then the very expensive short lived Yoko Adavan's I made it only 6k miles before I hit the wear bars with those.
Massive skip on the ContiSport Contact 2. PZero's Rosso's are cool but also suffer from longevity issues like the Adavan's. Not as bad but close.
Dunlop SP Sport Maxx's are decent wear life is about 20k. If you live anywhere that goes snowy on the rare occasion summer tires are a major no no.

Well unless you like crashing. If you need winter's I would you can't go wrong with Nokian (more hard core for non stop snow/ice use) or the LM series from bridgestone. Their latest version the LM60 is the best for highway street use with occasional snow.
If you want to go for good tread life and all season usability I would also consider the Pzero Nero A/S. Pilot Sports A/S are awesome too but at their price point you could burn up two sets of S.Drives and arrive at the same point in terms of cost and miles.