The VOIDRUNNER'S CODEX is LIVE! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
From the ones I own I'd have to say the storm giant mini from Wizkids. Just by awesomeness of plopping it down on the table and the players freaking out.
The Sword of Heironeous. There's a little bit of boob plate going on here but otherwise perfect. My last 5e character was a fighter, for whom I used this mini.