A lot of FSA cranks don't use standard chainrings. And there's nothing great about them, no reason to buy them over anything else I think?
Honestly, Shimano make the best aluminium cranks. Mainly due to to how they're made - nobody else makes cranks using the same process that allows them to be cheap while also hollow ie light and strong. Everyone else uses solid which is heavy, or I or C section designs which aren't as good in torsion and get mud stuck in the back of them. The pinchbolts and splines are reliable unless you're an idiot, the bearing preload is easy to set and the 24mm spindle means the bearings are a good size.
It's all I've used for a long time and there hasn't been any product released that would make me want to change. Any of the Hollowtech II cranks are great, except for the ones that use non standard chainring sizes (Mxx2, M960, M9000, and to a lesser extent M8000). The BBs are also really cheap and in stock everywhere, which is nice.
The SLX and XT are always the same weight with the XT being stronger and more expensive. Both are priced well and are common second hand. Either the 9 or 10 speed ones if you want 104 bcd, or the 12 speed ones if you want to save weight with a direct mount chainring. The 11 speed ones are fine but the chainrings are slightly less common as they use a bolt pattern specific to this generation.
The XTR cranks are considerably lighter at a weight that's in the ballpark of carbon cranks except way less prone to failure, and with similar strength to the XT. Careful with the chainring compatibility on them though, sticking with the 10sp or 12sp ones is a safe bet but anything else can be problematic.
Or there's the Zee/Saint ones for DH if you want strong...