PLO or O8

[shflush]

I have played poker for 2 years, first 1.5 in limit holdem, the last 6 month in NL holdem. winner in both format, more in NL in terms of money, don't have good pt stats( too lazy). now i want to try sth else besides holdem, be prepared for the future in a sense. not sure which format is better for me. I am pretty good with numbers, kind of patient, and usually play only 2 tables at a time. have play a few hours of PLO at 2/4 level, about break even i think. I have only read cioffone's omaha poker.

I know I need to try them both for a certain length of time to see if i really like it or not, but can anyone give any suggestion in terms of different skill sets required for the games? I want to put some effort into one of the games for now, not both, but not sure which would be better choice.

thanks in advance for your help