I have tried this with vim, but there are a lot of things lacking that an IDE could provide - code completion, searching of references, overview of the whole do

I have tried this with vim, but there are a lot of things lacking that an IDE could provide - code completion, searching of references, overview of the whole document, auto closing of blocks etc. It's probably possible to set something close up with vim but it would take a while. Maybe emacs has better tex support?