I'm going insect glaive and or gunlance. I just love the mobility of the glaive, but gunlance is just so tanky and fun as well. Only two weapons I played in worlds to any degree. Rise too for that matter (though I didn't like Rise anywhere near as much as Worlds which is one of my all time favorite games and was my first MH). Tried other fast weapons, just made me want to play the glaive, tried "heavy" weapons, just made me want to play gunlance.
I don't think glaive is that hard not to be bad at, since all you need to do is not just jump around all the time and use the buffs (which is a sign of people who just mastered the jump, but nothing else since flying around makes you nearly immortal in terms of many fights since mobs can't hit you while you chip them down, it just takes longer. So all they do is that since it "works".). But in partys with people who use gunlance, it's really noticable when you play with someone who is good. I think my mastery of it falls into playing well, not good. Timing the reloads, stakes, strikes, blocks. I'm never ashamed when playing the glaive, but gunlance.... "omg, I've missed the stake 3 times in a row, why did I just stab the air and wtf was that reload just now. Hope nobody saw it!"