Right now for me, that's the Waterfox, AdBlock Plus, Flash Control, YesScript solution... but that can change at any time. But then again unlike some of the others here I'm on a 12GB plan and want to make the most of it by eliminating most of the bloat appearing on today's web sites with network level blocking. Even during those slow peak usage periods when my speeds drop to less than .5 mbps to as low as the .2 mbps range browsing is still usable when you ditch the unnecessary cruft.
PROs for AdBlock Ultimate (No cons yet!)
No acceptable ads
Unlike other adblockers, AdBlocker Ultimate doesn't have any whitelisted websites, ad networks or advertising agencies.
Avoids awful looping problems on Firefox one sees with Adblock Plus and uBlock
Supports most popular browsers
AdBlocker Ultimate works on Chrome, Mozilla Firefox, Opera, Internet Explorer, Safari and Yandex.Browser.
CON for ABlock+
AdBlock+ has an automatic whitelist when installed that allows certain advertisers through the blocking mechanism. The fact that these advertisers pay for this privilege makes this particular scenario rife with conflict of interest.
AdBlock+ tends to use a lot of memory, which has been documented in many use cases as well as admitted by AdBlock themselves. Considering there are alternatives out there that can block ads successfully with half the RAM usage as AdBlock, one has to wonder why this is a problem specific to AdBock.