[Kilrith]

You CAN get your abomination to hold aggro, there are just some tricks involved. First, you need to resummon your Abomination every time you cross a chunk line. Secondly, to get initial aggro you need first get rid of autocast on Sneer (right click so it no longer has that little dagger icon), then send your Abomination at the mob and right as your Abomination reaches the mob manually click Sneer. I've found that works almost every time if you time it just right.