Meh doesn't really matter either way for me i don't really use 'code completion' i was just listing the popular ones off for @bgarrant to point out their existance.
My setup consists primarily of:
All autocomplete is the exception regarding predictive text, and there are 2 consequences of only using this, it:
Makes you think / understand more about what you're writing.
Keeps things nice and speedy, because you're only parsing your open files instead of a whole language definition, which seems trivial for something like css but suppose you had .net class/methods instead or a node_modules directory #cringe.
Though it does seem a bit odd to me that you say SublimeCodeIntel "doesnt work"...
I've used it in the past and it's worked fine for me, it's an order of magnitude greater in most stats (number of installs and latest commits in particular) and CodeComplice seems to be a fork of it anyway?