My reasons:
Minecraft-I personally like a game where we can "create it your own way" gameplay, although I didn't play Minecraft, I know I will like it if I can play someday.
Black Ops is part of COD series so, yea, both are the same.
For the main COD games-I like fps as one of my favourite genre besides fighting and RPG. So I like most of fps based games, not just COD (Resistance, Medal of Honor, etc.) fps is also the best kind of multiplayer games you can found in video games history next to mmorpgs.
As for Black Ops-Zombies, I love everything related to zombie. One of the main reason I like Black Ops, besides the one that I said above as a part of COD series.
Oh, and I still play Tekken 6 until now, I train myself in the arcade alone or together with friends like 3 times a week and playing some typical JRPGs at home too.