I have a couple of the showtime leads too & like them, but I don't usually use them for showing--I prefer my leather leads. I've got a couple of the round leads from Ozark Mtn., and I've got their flat leather lead with buckle too--and I like that one. Actually I think I might have a couple of those--those are the 4 leads I use the most.
I have a round leather lead with a snap--I got it with my first show halter, don't remember where from. I soon sold the halter (rolled leather, very plain) but kept the lead--I like it very well, but am careful about which horse I use it on. The snap can come undone, so I use it only on those horses that aren't a problem if they do get loose...yes, I could tape it, but generally don't--easier to do a quick change if it isn't taped.
I also have a rolled patent lead that I bought from Schneiders--nice lead but can be slippery, and it's just too short for my liking. It's supposed to be 5' but seems very short for 5', and it doesn't have a stopper on the end--so again, I only use it on certain ponies.