Diablo III: Don't Forget To Eat Today

[The Glyphstone]

I believe this post is accurate

As far as which level to do - the highest where you're beating the timer and not dying is my advice, because then you're not only getting more shards, you're also getting more paragon XP, better mf, upgrading your gems, and higher chance for potions and ramladanis (or however you spell it.) I wouldn't do any under 25, definitely not solo, unless I was really undergeared - in which case I wouldn't be going solo anyway.

That's sort of what I was asking - my best in T1 is clearing a level 12 rift, then timing out on 13, while in T2 i could clear a level 11 rift and timed out on 12.

So it sounds like T1 is my better bet, since it gets me a slightly higher rift level (though that may have been because I was using worse weapons the second time around). Currently sporting 320K damage, 5mil toughness, and 500K recovery, with Paragon 57, so yeah, I think I'm rather undergeared.