[UMTerp]

This is so straightforward - it just depends what your immediate goals are.

If you want to make the most money right now, play whatever gives you the highest hourly rate. Just be sure to recognize that it's pretty easy for you ROI to deteriorate dramatically once you hit a certain treshhold for number of tables. This number will obviously vary from person to person depending on your multitabling skills.

If you'd rather further develop you skills to eventually move up in the SNG world, I'd recommend playing fewer tables at higher stakes, provided it's within your bankroll.

There's really no right answer to this question - you'll have to weigh your options, and make a decision.