If you are new to smoking blunts id say a swisher sweet is in order, and since it is assumed you're smoking some dank with oil on it, id suggest the original flavor. IMO the flavored sweets are better for low quality herb to actually disguise the taste and smell from the smoker.
Like motherlode said, the backwoods are definitely the easiest blunt to split(in this case unroll) if you havent done it before, but a fresh swisher, optimo, phillie or dutchie will split very easy. IMO sweets are usually the freshest, esp. in cali dammnnn they are fresh now in those foil wrappers, then probably the optimo, philly, then dutchie unless u live in the NY area, or down south, my homies that go to ATL all the time say there are very fresh dutch masters down there. Buttt I think that dutchies have the smoothest flavor by far and would be the best for trying oil on the outside.
Backwoods can be harsh and give people huge headrushes but hey, im rolling one right now, so they can also be quite addicting. I would suggest putting the oil on the inside of the leaf to help it seal as woods can be a bitch so seal and nobody likes the idea of slobbering all over their medicine lol.
Phillies and Optimos have always been the least favorite in crews ive hung out/smoked with, except there is some love for the phillie in places where sweets arent available fresh, like Canada lol. Swisher really needs to look into BC, Ontario and Quebec as potential markets cuz people there really are hurting on the "blunt front." But Phillies and Backwoods sure are popular up there.
Hope some of this was helpful if you're looking to step into smoking blunts...