It's a little similar for me. There haven't been any zones that I've actively avoided in Kalimdor on my Horde characters, but there is a little twinge I get as an Alliance fan playing through most of the zones, when so much of it boils down to "how many Alliance can we kill today", especially contrasted to the odd lack of antagonism towards the Horde on Alliance side (I recently rolled a Night Elf warrior because I had yet to see Kalimdor Alliance-side and was ready to have her be extremely anti-Orc, only to feel like I spent more time overall fighting Naga than the Horde. Granted, I went into Desolace instead of Southern Barrens, which explains a bit of that).

That said, I've still loved the stories involved. I think Stonetalon was one of the best stories told in the game on both sides, and while the Horde comes out of it looking very much like the "bad guys", there's something oddly compelling about the argument Krom'gar puts forth for his actions, and the feeling of rising through the ranks of his army only to have your own actions render that advancement useless is a really interesting experience.

I have to admit, though, that I can't stomach questing in the Forsaken areas. I did it once for the story (on a Forsaken, which oddly made it feel more doable), and recently tried to have an alt go back through there to level and just couldn't bring myself to do those quests a second time.