From level 15 - 30 ( Using oak tree's to get to Willow Tree's ) you will need - 10,952 XP = 293 oak logs. From level 30 - 60 ( Using Willow Tree's to get to Yew Tree's ) you will need - 260,379 XP = 3,858 Willow Logs. best place to cut is around the draynor village jail.
You are looking at 131,378 Willow Logs.
It would take exactly 2555 willow logs.
Chop trees. Logs, Oak Logs, Willow, Yew.
You would need to chop 2793 willow logs from level 35 to level 60 woodcutting.
Maple Trees in terms of exp, willow trees in terms of speed. willows are good for non-members, maples are good for members with like 60+ wc, to make em slightly faster.
144, 679 willow logs, which equals to 2,025,506 GP if you want to buy them all.
I am assuming this is on the grand exchange, willow logs sell for ridiculously little. This is the reason they are usually used as weight in trades. I have not checked the general store sell price for this item.
You will need 150k willow logs to get 99 firemaking. I suggest using maples and yews after because it is faster.
There are many places to cut willow trees in RS, but by far the best place to cut willows is in Draynor, south of Lumbridge. There is about 6 willow trees that can be cut and as a plus, they are about 4 seconds (literally) away from a bank. Another nice but not as great place is by the Lumbridge river on the sections near the general store. There is about 3 trees and a bank in the castle right by.
1,021 Teak logs to get to 60 FiremakingFrom 60 Firemaking to 99, 63,016 Yew Logs.Note: this is the mid price optionThe most money saving is:122,551 Maple Logsor142,976 Willow logs, however this can still be dear.
It would take round about 120k willows, or you could do 60k willows and 50k maples which saves time -------------------------------------------------------------------------------------------------------- (EDIT) Right Answer: About 100k Willow Logs.