Tough question, arguably the most popular fat burner out there (alpha lean) vs natural anabolic/fat burner (muscle sculptor).
Considering that True Shred has a big dose of Laxo you already get the muscle sparing effects from that and alpha lean will cover your stim fat loss.
At the same time, I am kind of biased to high dosages of laxo, I like running 200-250mg of laxo when I use it which tips the scales in favor of True Shred + Muscle Sculpt. Can't beat 40% off either.
Can't go wrong either way, I would just say it is a matter of preference in terms of how much laxo you want to be using daily.