I've decided to save my herbs from MTK for the extra exp, but after i use up all of my herbs i want to raise rc or thieving. I'm thinking it would be better to raise rc but i would gain alot more thieving exp. Any suggestions?

Thieving is already pretty fast experience, I would level RCing.

Thanks

If you want to be time-efficient, train the skill that makes money at the slower rate (most likely thieving).

If you want to 'happiness-efficient', train the skill that you find more boring (most likely runecrafting).

The XP gain rate is immaterial at least insofar as efficiency is concerned.

Think of it this way. If you double your xp training thieving, for every hour of bonus xp you save one hour's worth of non-bonus xp training. If you double your xp training herblore, you save one hour's worth of non-bonus xp herblore training. So the savings from a pure xp standpoint are identical, assuming you're just using the fastest method in whatever skill you're training. But one hour's worth of herblore xp also costs you an hour or two's worth of money, so by saving an hour of herblore, your actual total time savings is greater than 1 hour. By further application of this principle, we can deduce that the best things to train in bonus xp weekend efficiency-wise will probably involve spending lots of resources to powertrain. Similarly, expensive training methods that would normally be less efficient than cheaper methods, such as prayer training with dagannoth bones, become more efficient than usual (gilded altars don't work with the bonus xp but you get the idea).

Realistically, to get the most out of the weekend, you need to level the most expencive but otherwise fast skills to be efficient, but as prayer isn't an option, herblore is perfect to gain cheap xp on(and what i will be doing, other good ones are dragonstone cutting, mahogany planks or addy/rune bars), unbuyable skills aren't much worth to do as the only time it takes them is the time you are training it, where as for buyables, it also takes time to make money/prepare but that time won't be accounted for.

so what u guys are saying is that it would be smarter for me to just go kill herb droppers like chaos warriors or abby specs and collect a ton of seconds to maximize the amount of time I spend training a "buyable" skill rather than a non-buyable one on the weekend?

so what u guys are saying is that it would be smarter for me to just go kill herb droppers like chaos warriors or abby specs and collect a ton of seconds to maximize the amount of time I spend training a "buyable" skill rather than a non-buyable one on the weekend?

Well, yeah, something like that anyway.