30 hours through my flight school's transportation program
50 hours through a summer of weather modification
20 hours through getting ratings (MEI and multi)
150 hours through an internship

Multi was the biggest thing that I was worried about, so I chased it pretty hard. Choose the experience that gives you the most multi time over gigs that might build your total time, in my opinion (even though I am shorter on total than I'd like to be). I would have liked to MEI, but I would have had to hang around for quite a while longer at my flight school to do so.