Era 2 Tech Tree Purchase

So I looked at the stats on the Tankopedia page. I play both tech trees fairly regularly. But I was curious if anyone had any personal opinions on performance.

I’m debating buying one of the two. M60A3 or the Magach 6B Gal. Magach offers slower Horse, slightly lower DPM but offers more HP, not sure if the ERA makes any difference. I took the M60A2 route to get to the M1A2. Any opinions on which to buy for the grind and fun to play factor?