after a little googling the 3 dosent have the wrapround glass at the rear to give a little more space inside but i don't like itYeah not 100% sure of the differences between the TK2/3 as they look overall fairly similar, both being an ATX version of the TK1 to some degree.
the 1 or 2 would be the case for me.
when jonsbo first popped up they was classed as a budget case maker but over time there quality as shown. they make good solid cases.Yeah I've never used a Jonsbo case before but it's the current front runner I think, haven't actually bought a case in years, still using a Fractal Define and Arc Mini, and then had a couple of parvum cases but since they've stopped being a thing for a while now!
the UMX1 i have is full brushed aluminum and look like a classy case.
the D41 LCD again an amazing solid case there is a few on here that use the case and rave about it.
its defo a manufacture to be tried.