Doubts about modeling

BlackEye

Hi guys, this is my first topic here and I have some doubts about modeling.

What the right way to join two diferentes pieces like the below example. Who has less tris and why?




Here is another example that i can't understand, the left piece has 14 tris less than the right one. Just because the upper face is only one? That isn't a problem if a want to use in a game?



Thanks.

passerby

really depends on a lot of thigns but generally for both cases you present i wouldn't use any of the 3 methods you use, and just connect everythign to the corner verts of the top face as opposed to makeing new edge loops that intersect the whole model.