Suntour suspension fork hierarchy and features

From best to worst:

• Axon
• Epixon
• Raidon
• XCR
• XCM
• XCT

Features:

• P = Post-mount brakes
• D = Disc brake mounts
• D-P = Disc mount and Post-mount brakes
• MLO = Mechanical Lock Out
• HLO = Hydraulic Lock Out
• RLO = Remote Lock Out
• LOD = Lock-out with Rebound Damping
• E = chromoly stanchions and steerer
• D (vs E) = STKM stanchions and steerer
• DS = ?

Source: MTBR forum, sesuntour-cycling.com

Shimano MTB XC parts hierarchy

From best to worst:

• XTR
• Deore XT
• SLX
• Deore LX
• Deore - lowest for mountain biking
• Alivio - highest for recreational biking
• Acera
• Altus
• Tourney

Source: Wikipedia