Breh, just try shyt out.
I started out using the Switch Axe (I love technical, heavy weapons) and loved it. I tried the Long Sword but was slightly put off. Tried the charge blade, found it awkward, and then it clicked when you realize to charge the vials. Now I'm in LOVE with the hammer too. You have to use each weapon differently and they feel so different that just trying them out is fun.
Upgrading them in the beginning isn't really a big deal after you settle into you quest structure loop (Bounties, optional, investigations, investigation, hub for upgrading, etc). You're just start being adept at the hunt that you'll kill monsters on the way to your main hunt for quick extra materials if you wanna just quickly forge and upgrade a weapon.
I just picked up the bow and I'm loving this shyt. It's like a ranged melee weapon more than what I was expecting and it opens new strategies for the fights.
Try some of the crazier weapons like the Kinsect and Gunlance.