I'm trying to memorize all of the F2L algorithms from the Fridrich method, but I don't know which ones to learn. There are three types of algorithms: optimal algorithms, RrU algorithms, and RFU algorithms. I just want to know which type of algorithm would be best to learn for the quickest solves.
I get the algorithms from here:
http://www.opticubes.com/cubing/f2l/