Mike and Ike is good, and so is ring pop, both of those were 1st and 3ed as for butter fingers they are good but they aren't the best :/ (my opinion don't hate)
P.S. You can't have check points on sections which have multiple track choices as the logic dictates that marbles must pass all checkpoints to complete a lap. Sections that are singular have a fair few checkpoints, but multiple lane sections only have checkpoints when the marbles get back together.
