I wish I could pick where my gaps are going to be... you really can't avoid them in the lowest 3 gears but if my cassette went 11, 13, 15 and then single tooth differences I'd probably be happier. I don't really get into the top 3 cogs unless I'm going down a hill and the spacing is less critical there to me.

15-17-19 is more of a noticeable, annoying gap IMO.