i too play hots now and i don't see myself playing dota/lol ever again. it's been over a year now and i don't miss them at all (i played both of them a lot - been into these games since 2004)
btw, up until hots, hon was my favorite moba by far, but only during its beta - everything went to shit after release.
I just think the complexity level of dota and league is much more intriguing to watch and play vs how simplified HoTS is.
HoTS is a very team based game. But so is Dota and League.
I have more respect for Dota and league players because of the extra aspects they have master on top of the ones that are in HoTS.
HoTS really didn't do anything unique IMO except for the universe the heroes are based from. It just seems like a watered down MOBA experience. Will most likely never pick up the E-sports crowd like League and Dota have just purely because of how simple it is.