>>6312635More molds. That's not much of a draw for 3p and 4p, but it's still variety of molds to collect and choose from. If you are looking for G1 Springer - go for 3p stuff, if you want IDW Springer - Generations Thr30 2013 Springer mold is perfect fit.
Never stickers, only paint. HasTak have a massive boner for stickers, which tend to peel off immediately after you get a fig out of a blister without any input from you.
Less gimmicky. Of course there is light gimmicks (see Planet X), but I mean more general "line gimmick". Currently, HasTak goes through their "Titans Return" headmasters' phase. Which are not even proper Headmasters, where is my fucking power gauge gimmick?
And then there are things like "MT CrossDimension" line. Articulation is beyond anything this class, perfect paint apps, accessories galore, aaaaand... It's original mold, based on nothing. Bastard of Transformers and Gundam, but result is so good they sell out rapidly, even tho there is no "original source material" them and no nostalgia driving purchase.
You can and you should mix and match. Thr30 Springer fits perfectly between MMC Spartan and Azalea, and it's probably why MMC has been holding off on making their own Springer mold yet. 3p and 4p compliment HasTak line.