DG 105 is the sealant champ in my book in durability and looks. The Meg's product can't compare in the durability part.
However if your focus is on getting rid if swirls instead of durability then the Meg's product has more correcting ability.
I'd rather suggest you try some Meg's ultimate polish then top that with DG 105/601 as its a good finishing polish similar to M205 and has more cut than black wax.