I never played HoN, but I also experienced the terrible balancing issues in DoTA.
This wasn't meant to be a HoN vs. LoL vs. DoTA thread, as many have stated.
Just a friendly suggestion on a fun, great game to get a break from WoW and other MMOs.
Great responses though. Kudos, internet population... Kudos.
EDIT: I just read a few more, and yes, when I started playing I was a bit turned off by the fact that can't deny; but honestly, I don't think that it takes away from the game at all. I would always get real pissed in DoTA when there would be like 4 allied heroes beating a tower to the ground, and 1 random enemy hero walks up and denies it, and all your hard work just goes out the window. Pretty irritating, I'm sure you'd all agree.
EDIT 2: Also, just to add, League of Legends just came out basically. It's patch is like 1.1 or something. I say that HoN is better then LoL because of the fact that they are sponsored by like, tournaments and shit, is kind of a null point. League does have competitions and tournaments, and they are in their early stages of world-wide game play. In my opinion, League can only get better.