To learn poker I find that the $1.00 180+ man sng's are the best. It is a relatively cheap way to improve your play and style.
I enjoy playing the 1 table- hyper sng's, (there are many types of these dependant on which site you play), these help you develop your final table strategy. Also, a chance to play it different ways and see which you are the most comfortable and importantly the most profitable with.
Gl on which ever you try but, remember to use good Bankroll Management, otherwise you'll go skint before you have the chance to try what you've learn't.................