"The mammoth sucks, A big slow expensive tank that cost per cost has LESS armor, LESS speed, and LESS firepower then the medium (ive tested). Whatta deal whatta deal."
A lot of people forget the mammoths self-repair ability. This can be useful if you remember about it. Still doesn't make the mammy worth it though does it?Anyway, I reckon medium tanks and stealth tanks are the best two. Meds for their all-round abilities (win almost all tank fights on the field, can rush, not too slow, etc). Stealths for their speed, damage, and beacon-assistance (works best with 2 or 3 stealths - the guard tower kills one or two and the enemy thinks that is it...)