I had a 17.3" laptop that fit nicely into my bag while in college. Therefore had no issues commuting with it. It is a little annoying in class if you take notes on paper as well as it limits your available space. Over the years though I've just wanted something smaller, at first I loved the big screen now I loathe it (I'm always on the move with work). Decided to finally get a 14" laptop (thin bezels make it 12.5" chassis).
So that's another option go for the thin bezel gaming computer that packs a larger screen in smaller form factor. One laptop I was really considering is the Gigabyte Aero 15 (https://www.bhphotovideo.com/c/product/1339494-REG/gigabyte_aero_15w_bk4_i7_7700hq_16gb_512_m_2.html)
The things a beast, and for its size...