so heres what I have used
360- was my go to for sometime but I work in direct sunlight in the desert so heat is always an issue, I would sometimes run into problems with holograms while using 360. it didn't matter what I tried to do, change speeds, pressure pads whatever it didn't help BUT 360 did have some of the best protection of any AIO ive used and tested.
HD speed- my go to for my lowest paint enhancement offering. can be worked for what seems like days and no matter how long I let it bake in the sun (normally don't wipe any off until the whole car is done) it comes off with ease. protect has lasted about 3 months in my testing which is great for the package I offer it on.
Megs 66- my first AIO and used it by the gallon for years, its more chemical cleaning then abrasive and still has its place for me as it does great on care that are just covered in road film and waterspots. don't last long at all as far as protect, maybe a few weeks
Menz 3-1- it cost a lot and didn't seem to impress me much in any way. cut was not the best and protect was one of the first to go in my AIO head to head testing. not really worth the price for me
Megs 151 my second AIO and boy was it a great product. id say it was the best all around product, the price for a gallon is cheap, the cut is great (its 1 above 205 on the cut chart if I remember correctly) wipe off was easy, has plenty of working time and protection was about 4-6 weeks which is decent for what you are paying for.
Megs D166- the new kid on the block, so this guy is something else, it cuts amazingly, has long working time, does great in direct sunlight and as far as protection goes, seems to be the best as far was waterspot protection goes for sealants. im still running it in longevity testing but for me waterspots are the biggest concern and this so far seems to be holding up the best. now I am having issues with "sweating" but I have that issue with a few products I use and I think its because f the heat I live in. Megs has said it can be sent back but I think the product is good enough that ill buy more when im out of this and likely by the gallon. this is a step up from speed for my packages and it can cut so well and the protection so far seems to be better then any AIO so far but we shall see.
griots finishing sealant- decent cut, great working time like most griots products but I think when it comes to protection this one was out in the beginning so that was disappointing.