OP here. SPF13 itself is really nice. But the main difference here is first I try to emulate ST2, second I'm really picky which plugins are integrated. I also don't use vundle (because It should always have the same feature regardless of the state of plugin), instead of I'm using pathogen (which I like more). With time I will update the plugins myself, but only if they have bugfixes or features that are necessary to be added.
Some of plugins (like ctrlp) is modified in order to use the ctags binary I'm bundling and installing. There is also pre-compiled version of YCM in subvim. Together it means autocompletion and goto features are really working. You really don't install anything.
The plugins settings are modified in order to emulate ST2 like behavior, like accepting autocomplete entry via enter, creating a newline after braces,quotes,etc.., opening a new tabs whenever you call cmd+p (but not if you call cmd+r for using goto), closing the application and starting again brings all you tabs/files again and so on..
They are many things I'm trying to improve, like adding snippet system, more improved installation procedure, multiplatform support (linux and windows). SPF13 is much better on these terms.
