Everyone is raving about M101 but I haven't tried it yet. It's on my next shopping list. I saw a comparo video next to M105 and it cuts better and left a better finish using the same pad, machine, and buffing cycle length.
My current go-to combo is M105 and Surbuf. The key to avoiding dust is keeping the pad moist and only biting off small areas (1'x1' to 18"-18" max) and hitting hard and fast. When used right M105 should buff down practically clear when the buffing cycle is done with minimal residue to wipe off and little to no dust.
I will be purchasing the Xtra Cut MF pads and M101 next as I do a lot of sanding for a customer of mine and need be able to cut heavier and quicker on these hard truck paints he sends me.
Mrclean81 and I worked together recently and he was following me around a vehicle with Adapt/Meg's MF cutting pad/GG6 3rd gen cutting out my 3000 grit sanding scratches on hard, sticky, black Chevy truck paint and leaving a very good finish that only needed a minor polishing step to restore the finish completely.
D300 is a great light to moderate compound that can finish LSP ready in a lot of situations.
Like mentioned before there are a lot of choices, but I believe through evidence and experience that Meguiar's really has compounding technology from a pad/liquid perspective zeroed in.