Adam,
First, welcome to FOG.
Your question is a tough one. Individually you can find some tools that might be a bit better. And some tools are better in some circumstances.
For example, I have a Mirka Ceros. It's a very good sander - nice and light, and has good dust collection. For sanding walls and ceilings, it's better than my Rotex 150. For polishing, it's not as good. For heavy hogging out wood, I think the Rotex is better. It just depends. OTOH, I would NOT have bought the Ceros if I couldn't integrate it with my Festool vac - the 27mm Festool hose fits in the Ceros dust port perfectly. Just like my other Festool sanders.
And that brings me to the next important point - Festool has an integrated system. ALL of my sanders, OF1400 router, TS55, 850 planer, Kapex, etc work with my Festool vac. The rails, clamps and MFT integrate extremely well with my Festool tools. Not having to futz around with tools to get them to work together is HUGE.
I love it when someone blathers away about how XYZ miter saw is better than the Kapex. And then you'll see them buy all sorts of add-ons and gadgets to capture the major dust storm generated by their favorite saw with the glitzy features. I had a Bosch 4410L and a Makita LS1016 before I got my Kapex. The Bosch was decent, but had some quality failures, the bevel gauge was mediocre, and it was HEAVY. The Makita was light and had decent features, but BOTH of the ones I bought had runout and the dust collection was abysmal.
So is the Kapex better? Depends on what you value. For me, the overall quality, light weight, accuracy, and great dust collection are worth every penny.
My suggestion is to evaluate your needs, and then buy the tools that match your needs the best and have the best overall feature set. Stand back and look at the forest not the trees.
Regards,
Dan.