[UpDog]

Personally, I like the 6 inch figures cause they remind me of the 5 inch ones I had growing up as a kid in the mid to late 90s. For me, 6 inch hits the perfect sweet spot between too little at 3.75 and too much at 12 in.

but there have been some fantastic 3.75 in figures, and they interact well with star wars and gi joe, which gives you access to things like vehicles. It's all just personal preference man.