Greeting's Marines. I'm starting up a Black Templars army, but at the moment I'm crossed between three choices of play: Mechanized, Footslogging, and Hybrid Mech.

I was curious, which is probably the most competitive of the three? My last two armies were made purely for fun/coolness, but now I'd like an army that's relatively tournament competitive.

Currently I'm leaning towards Mechanized and Hybrid Mechanized at the moment, but I'm unsure of their effectiveness.