I came from another platform and tried BBEdit, but never quite got the hang of it. I ended up using TextMate and that's what I've stuck with ever since, largely for similar reasons. Text editors have advanced a lot over time, somewhat surprisingly, but ultimately I need a text editor to operate via the principle of least surprise and be incredibly stable. I still mostly use `vim`, but I am really happy about the state of editors on OS X. It's far better than on my prior platform.