Stipe - perfect HW size. Best HW's have historically been in the 240-250 range (Fedor, Cain, Werdum etc...)
DC - cuts a ton of weight to make 205, insanely drained at weigh-ins.
Whittaker - average sized MW, don't let his past as a WW fool you
Woodley - massive WW, also cuts tons of weight.
Khabib - He's a meme for missing weight
Holloway - Again, the guy is massive for his weight class. Move to 155 inevitable
TJ - Yeah maybe. He's not a huge 135'er.
MM - pretty much the only reasonable one.
Size matters, end of story.