Look, I live in the northernmost city with over a million people in it (5+ mln, to be exact). I know what a northern capital looks like and what it has to offer. Solitude and Windhelm do not qualify as capitals, but if bethesda put some effort into them - i'd spend all my time there instead of wandering some stupid damp cave.
Yeah the caves are actually my biggest gripe with the game, too repetitve, too big, and too much junk. I've never really stayed put in the cities for too long unless I want to do a few quests SO, this "issue" people seem to have with cities seems rather laxative to me, the person who likes to explore and fight. If you want the Imperial City go play Oblivious!
