It depends, with CBB I hunted down a bunch of freeware sites and submitted them there, just cause I thought that that game might have a bit of life outside of the klik community. Other than that, usually TDC, occasionalyy KU or KA
Well gamehippo just got a flock of new reviewers who seem to be reviewing like crazy; but most of the staff is biased against klik, even though they have games on there that don't even meet the quality that a newb could do with Knp. It's sad really. Try Cap. Ventris, track him down in the forums, he seems like a decent guy who could care less what the game is made in.
Some klik games got some fairly good reviews on there I thought - MSD and SND got 9/10 from staff reviews.. Then like 6/10 average user review. I've never tried submitting a game there though - might try it in the future though.
What sucks most is that they send me an email saying "we have recieved your game and are now considering it" Then thats all I hear.
If they sent me another email saying that they haven't accepted the game and a reason why then maybe I wouldn't be so pissed. Well only a little less.
Main problem with Gamehippo is their submissions page is absolutely fucking raped by advertising scripts, so all their 'submissions' come from the front page of The Underdogs. And then there's some truly terrible shit that comes in the back door.