well, i'm only interested in allied tanks right now, so the pershing will be the biggest? i want to build a landing craft rc boat in 1/16ish scale, and i need to use the biggest allied tank available as a base so i'll have room for any tank that i'll want to put into it. so that's why the biggest. i'm also only interested in 1/16. i don't have the room for anything bigger than a 1/16. sorry, i should of put more information in the original post. also, how big is the mato sherman in comparison to the tanks i listed? that was one other i considered, but it looked like the smallest of the allied tanks available.