Honestly there is so many choices you'd missing out if you were to stick to only one or two weapon types, even if you have not reached endgame yet. I mained GS in p3rd and 4U so I thought it was time for a change. SA was a blast overall with the 4 styles and LS never felt good to me until I got a taste of Bushido/Adept style. I'm now learning CB as I have never touched it before, and I'm enjoying every single second I'm playing with it. Next I'm planning on learning Bow or toy around with Lance... although to be honest I kinda want to get proficient with every weapon at this point.