I'm stuck between picking either Frostbite 3 or CryEngine 3. They're both drop dead gorgeous, have lush, rich environments and amazing particle effects. But then again, Frostbite 3 has that huge amount of destructibility that I love. Then there's other amazing engines like the Glacier2, id Tech 5, the Source Engine and the Rage Engine.
Most or all of those are poor choices. Games made with the Frostbite engine and not called BF have sucked. What games have used CryEngine3? So really a vote for that engine is a vote for one game. The whole point of an engine is to be flexible enough to be used in many games, preferably many genres. So RAGE is a good choice, assuming you meant Rockstar and not the game (which did look amazing).