.......type is less Important than matching color and size to conditions.....clear/green water with open surroundings and clear sky's go clear cleargreen white or light blue.....same water with trees crowding more clouds/less light you can go green foam ....heavy cloud open surroundings go gray......colored water player's choice......balsa/brown good in most conditions....... my 2 cents
IMO it does not matter what type/color of float you use. Fish whatever you have confidence in. A lot of anglers I know like the Cleardrift floats or similar brand. They feel it is more stealthy esp in clear water. I don't like that they crack easily and fill with water. If I find them on the river I give away to buddies that fish them.
I like the shape of D&E or similar brand floats. I find they ride nicer in the water than the the non-tapered foam floats.
Not really a fan of the wrap around foam floats as they do not slide very well when adjusting float depth, and the line cuts into them when breaking off a snag or with a big fish on.
Personally I like cork floats as they look cool IMO and they have a bit more weight which is nice for casting.
End of he day, don't worry that the color or size of your float is affecting the # of fish you catch. Your lead and swivel is hanging below that float and, IMO, is more likely to spook fish than your float up on the surface. Now your leader length, leader material, breaking strength, hook size and presentation will affect if you catch fish or not, but that is a another discussion for another day.