This is funny, because once I opted out of Whitelisted advertising through Adblock (they even tell you how to disable it in the iinstaller, ffs), I really haven't noticed a difference in operation between Ublock and AdBlock Plus.
I also opt out of the whole debate about the ethical factor of paid whitelisting. I would have a stronger opinion if AdBlock Plus were the only ad-blocker available, but it's not. As it is, I use both, depending on the install. For Example, i used UBlock on my Lubuntu install, but I can't be bothered to switch on my main machine. My wife's Kubuntu box got whatever I felt like installing (ABP, I think), and it seems to work just fine. The machine I built for my co-worker got Ublock, because he doesn't care which I put on as long as it blocks most ads.
Wish I could get ABP op UBlock for my tablet's default browser. Makes browsing the web a bit of a chore having al that extra crap on the page.
Biting the hand that feeds IT
