I have 60 fishing, 60wc, 34rc, 45mining and 63 fletching. Which would give me the most money quickly(like in a few weeks) and which would give me the most in the long run(to 99)?

Runecrafting in a few weeks, mining/rc in the long run (deaths -> double astrals -> double nats and rune mining).

Do you mine your ess or buy it?

Buying gives you less profit but it's much quicker, tbh. If you're limited on time it might be worth just buying it.

Well, fishing and woodcutting are right out. They're not moneymaking skills. And fletching is only good if you do broad bolts, which are good, although best when combined with other activities. Runecrafting is a pretty reliable 500k-1m gp/hr or so once you hit the right levels, so that's good. And mining is on a similar level with runite. So out of those skills, I'd say either runecrafting or mining.

 

Buying gives you less profit but it's much quicker, tbh. If you're limited on time it might be worth just buying it.

You actually get more money buying the ess.

My answer includes a question, if you can do broad bolts while mining consentrated gold @ lrc, you could make decent profit. Also with a Camulet you'll get money from mining granite (bank the 5kg's, they're over 2k each.), a bob would be useful here. So mine granite till 77, then go to lrc and mine coal and then gold, while doing broad bolts. If this is possible. You can do super heating but I've never heard of ppl doing broad bolts.

 

And if you're really good with handling your mouse, you could do bolts while rcing. Runite mining is quite luck based. If you run into worlds with spawned gold spots over and over again, you'll make nice cash in a short time, but on the other hand you could be running through worlds for 15 minutes searching for a place with spawned runite rocks.