Should I use OSRIC or LL and the AEC?
Both are good.
Both have merits and such.
My FIRST experience with gaming was the Basic Set with the Earl Otus cover so LL is a natural fit and with the AEC it plugs in the "advanced" style of play with the "basic" style of play.
OSRIC is the "advanced" style of play apologetically.
Which system do you like out there and why?