I am a fan of the Sicilian, specifically hyp accl-dragon although I plan to switch to Najdorf or regular dragon later on when I get better, and I would say that the 2.c3 anti-Sicilian is the easiest to learn (also easiest to play against as a consequence though). If you are more aggressive then try the Grand Prix Attack.
If none of the anti Sicilians are working for you, then switch to 1. d4 (D4 player myself). The downside is that in 1. d4 openings transpositions are common and you NEED to know which opening your opponent transposed into. The upside is that a lot of the 1.d4, 2.c4 openings have similar themes.
I see the c3 lines about 10x more than open lines these days. I am pretty sure any Sicilian player will know them as well as their main defense.