[SquareWheel]

This is my reason for preferring tabs. Plus changing indent levels is faster via arrow keys.

[Tloewald]

The main reason for preferring spaces is wrapping complex calls split across lines. (Of which there is a lot in some languages such as obj-c or JavaScript.) We just went through the whole tabs vs spaces debate on a new project here with, I think, open minds and a general preference for tabs, and ended up using spaces. The alternative was tabs for basic indentation and spaces for line wrapping but that's too hard to maintain.

YMMV

[kstrauser]

And even faster using tab or shift+tab to pop up or down a level, regardless of whether you're using tabs or spaces.

[SquareWheel]

I do this too, along with Home/End to navigate. Once in a while though I want to move only half way left of the indent, which is one press on tab, 2-4 of space. Can't use ctrl+left there.

But more than anything I'm sure it's just familiarity.

[charliesome]

Any reasonable editor can be configured to jump multiple spaces at a time.