Jg main here and those champs listed have a very different kit and playstyles. Jungle isnt the same as a laner where your main goal is just to CS as much as possible while avoid dying + trying to kill the enemy laner.
The diff types of junglers are essentially:
- AFK farmers - farm heavy
- Skirmishers - gank heavy
- Utility & counter junglers - vision & prevent the other jungler from doing his job
These further breakdown into tank, AP and AD champs. Figure out how you're the most effective then choose a champ to fit that niche.
IE.
are AFK farm heavy champions who do nothing until late game. If you try to use them as early gank heavy champions you're going to have a bad time. Potentially end up feeding and being useless later on as they dont provide any further buffs/utility to the team if theyre underfarmed.

gank heavy. Start ganking and roaming very early. AFK farming jungle won't get you ahead as much as if you ganked and got kills.
Utility. Can get deep wards in enemy territory to watch their movements and let your team know where theyre at. These guys are pretty bad at getting lots of kills and ganks arent the strongest but decently strong body in teamfights & info for your team.
If youre trying to use them in a way they arent designed to be that's how you fall behind. These diff roles have varying jungle patterns too. Gank heavy ones will do both buffs and another camp to 3 and usually gank from there. Farmers will clear everything, reclear the other side then go back to get items. Utility will clear their buffs and check out where the other jungler is and should try to take the enemy jungle big minion so their farm falls behind (nunu good example where he can bloodboil, consume and smite the big minion fast and get out).