Go to TireRack.com and pick out the tire you want to get. It will have a breakdown of how the tire did in a particular test (rain, dry, tread wear, etc.) and have consumer reviews of people who bought that tire. That should help somewhat...
I've read many good reviews of them (some on tirerack.com and in performance magazines) Thats what I'm going to get when I do my wheels (after winter). Either they are really good or it's a conspiracy. I'll let you make your own minds up on that one.
Falkens aren't bad tires. I have both the ZE-326 and the ZE-512 versions.
The ZE-326s are discontinued under the Falken name, but Falken still makes them and sells the under the Zexius (known as the Xi326) name throught Les Schwab Tire Centers here in the Northwest. It grips well, quiet and smooth riding. Perhaps one of the best tires I've had to date.
The ZE-512s are sold at various places (Discount Tires, Sears, etc..) and it's also a pretty good tire I've found. It also grips well (perhaps marginally better), rides smooth and all around a good tire, but the ZE326s were a little quieter.
These are both all-season tires.
Falken also makes ultra-performance tires. I've heard good things about those also.
I've bought Michelins, BF Goodrich, Bridgestone as well. I've had good luck with most of my purchases. The key is to do some research.
Different tires from the same brand will handle/wear/perform very differently.