So many mods

Wow... There are so many mods and so little time! Should I download the Battlefield 2142 Zombie mod or the Battlefield 2 Pirate mod??? Should I install the C&C: Red Alert map mod or the C&C: Tiberium Wars map mod??? This website is eating my internet cap, but I don't care! This site rocks my socks off!!! Which mod is your favorite mod?