Time Crisis is better than Area 51. You have the ability to duck, unlike area 51. Not mention area 51's awkward graphics and stuff. PLus, Time Crisis: Crisis Zone with the MP5-K is so awesome. Almost everything is destructable.
I don't know what best game of all time is. GTAVC doesn't get old, Dead To Rights is a game easy to pick up and play plus it has hella fun stuff to do. Half-Life has many mods that rule and is fun on it's own. Halo is completely awesome.