Sorted by Roles (My Opinion)
Sorted by role, then by attribute and in alphabetical order.
Roles go Carry/Core/Support
Carry: Gold Dependant, mostly late game
Core: Not gold dependant but can excel with gold. Wouldn't generally buy wards/support items. Might pickup Blink, Aghs ect.
Support: Not gold dependant. Buys wards and support items.