I'm a huge fan of Sublime Text 3. I love it's simplicity and strong package community. Here's a list of my favorite packages and config tweaks:
Package Control - This enables you to easily search for and install packages. This is always the first thing that I do with a new install of Sublime.
AdvancedNewFile - Best way to create new files.
Auto Semi-colon - Add a semi-colon to the end of a line even if your cursor isn't at the end of the line.
All Autocomplete - Adds autocomplete for words found in all open files. Works well as a supplement to SublimeCodeIntel
Emmet - Awesome shorthand for creating HTML markup. As an added bonus it forces you to learn to write CSS selectors better.
GitGutter - See which lines have been changed since your last commit.
Markdown Preview - Allows your to preview markdown docs in your browser.
TrailingSpaces - Kill all trailing spaces in the current file.
Sublime Code Intel - Auto complete awesomeness
Sublime Linter - Lints all sorts of languages. I use it to auto-run jsHint on my files. So useful to see lint errors as I'm coding.
Sublime-text-git - Have to manually clone and checkout python3 branch to get this to work in sublime text 3. It's a bit of a pain but worth it.
Notice that Vintage does not show up in my ignored_packages and I even have it default to start in vintage command mode. I made this switch about a year ago and have never looked back. I really feel like I am more efficient getting around and editing code.
I've had a few people ask me about my Sublime setup and wanted to get it out there. Any cool stuff that I'm missing?