I'm at level 47 Nord and I have been having a pretty good time just hacking and slashing my way through the game but around level 30, I got bored and started to skulk around a little more and have really been enjoying sneaking up on ridges, laying down a barrage of arrows (while hidden) and sneaking in to finish any survivors with a slash of the throat.

I am fast approaching level 48 and have not really developed my archery or sneak skills beyond the few initial perks. Because of my new tactic, both skills are increasing steadily and I am wondering which is more valuable: sneak perks or archery perks?

Which would you all increase first?