Since you wanting to upgrade...do you have any idea of what you want to spend...You have several options...to look at..and knowing your price range would be most helpfull...
FWIW...I use a Hornady Lock & Load...and I do like it a-lot...it's fast and easy to change dies out..and it is consistant with putting them back in with the Lock & load bushings.....and if I felt the need to go to a better single stage press over it...it would be a Forster Co-Ax press.....If I wanted something different...say...something that I could have...to set on my bench to load multiple calibers at once...the Redding T-7 turret press would be my choice...they are one of the better Turrets available...now..going to a full progressive press...only 1 brand would be for me...Dillon...
Basiclly...it will come down to what you want to spend...and what color you want...
They all work pretty darn good...and make good ammo...
Mac