This is mainly meant to help newer Players, if you want a brief rundown
Top - The best of the Best
High - Best of the Rest (generally the best for starting out)
Mid - Good but usually lack a bit of speed or jump
Low - Usually lack jump lenght but have alright speed
Bottom - Dont even bother with these
Top
1 - Night Thunder
2 - Blood Hawk
3 - Twin Noritta
4 - Deep Claw
5 - Golden Fox
High
6 - Sonic Phantom
7 - Wonder Wasp
8 - Red Gazelle
9 - Mighty Typhoon
10 - Space Angler
Mid
11 - King Meteor
12 - Queen Meteor
13 - White Cat
14 - Astro Robin
15 - Super Piranha
16 - Little Wyvern
17 - Blue Falcon
18 - Death Anchor
19 - Moon Shadow
20 - Elegance Liberty
21 - Mad Wolf
Low
22 - Wild Goose
23 - Dragon Bird
24 - Mighty Hurricane
25 - Great Star
26 - Hyper Speeder
27 - Big Fang
28 - Green Panther
Bottom
29 - Iron Tiger
30 - Panzer Emerald
31 - Fire Stingray
32 - Wild Boar
33 - Crazy Bear
34 - Black Bull