>>18762844I generally dislike the water routes, but it was far more annoying for me in Sinnoh (Diamond and Pearl, specifically) because of that slow-as-a-shuckle pace. There was a lot of water in Hoenn, but the pace made it felt less tedious and the rest was fun, IMO.
So, basically, Sinnoh water routes. I also agree with Route 13 in Kalos and most places that make you go slower in general. (Swamps in particular, but yes, snow, deep sand, and I'm not terribly fond of extra-tall grass.)