for pvp, prayer will keep you alive the longest. but it can be a bit tedious to train. with concentration you can outlast your opponent which is just as important as outfighting them. summoning helps immensely with mobs and bosses. but anything herblore can do you can just buy.

 

prayer for me

id say melee combats,summon, prayer, herblore, dungion.

 

melees are always useful even on nonbosses and increase combat lvl most

 

summoning is useful in rs and non rs and u need 96 for 138

 

prayer with soulsplit and turmoil is to good to pass up its expensive but it raises combat level.

 

herblore the extremese help and thiers a pretty big dif between 125 and 118 usually during slayer im wanting to repot at 112-120 depending on the monster so compared to superpots its a big difference.

 

dungioneering the weapons and shields are nice but its alot of effort/hours of dungioneering fr this besides being a 138 will get u in more teams for dungioneering and herblore has lifesaving uses when bonus doors are concerned.

 

and while your getting 138 try and get total skill level up too runecrafting, agility, mining, are good skills too >:o

summoning > prayer > herb > dung

 

if there is a batch two of dung:

 

summoning > prayer = dung > herb imo

dungeoneering one only has to be able to get to 80-82... Prayer to be "usefull" one has to get to at least 92...

 

That difference is really what makes me thinking dungeoneering is more usefull to get (at first).. especially with the possibility of a new batch being released..