Built in Factions system, the whole shabang
Built in Events which include Koths & Conquest
A Mountain system for creating "Mountains" of resources
Dynamic shop signs
Classes (Archer, Bard, Miner, Rogue)
Built in economy & vault economy support, use your favourite shop gui plugin!
Ability to hook into Vault, Zoot, Nucleus or Core (newest version) for getting groups and handling chat prefixes
Scoreboard
Tablist (due to API limitations it stops working sometimes)
Lives & Deathbans
Death messages
Combat loggers
Timer system
Item filter system
Crowbars
Combat walls
Essential HCF commands
Chat commands
Experience multiplier settings
Staff mode w/ freeze
Enchantment limiter
Potion limiters (ability to block and limit potion times)
KitMap mode (w/ kit signs and ability to create and edit kits)
WorldBorder system
EOTW mode
SOTW mode
SOTW enable/disable
Profile settings
Statistic tracking
Subclaims
Elevators
Reclaim system
Rank broadcast system
Notes system
Rank revive system
Faction management
Profile management
Everything is configurable
Module system to add your own addons into the core (in beta, more about this below)
MongoDB & Redis database support
Efficient, clean and efficient
Easy to understand API
and many more small neat things.