As a very late addition, if you REALLY feel like pumping up your sneak skill (or any other skill) to avoid the hassle of working on it, you should use 'player.advskill sneak '. This adds experience to the skill instead of just setting it to a value, and thus the skill levels gained contribute to your character level. Unless you're using an uncapper, if you stick a very big number there it'll pump you right up to level 100 in that skill.
Note: I don't do this, and until recently I had a bat file that set all my skill levels to 0. ^^
The whole point of my rant --as some people have come to calling it-- is that it is primarily the perk trees that I have issues with. For example: I have started a new game and as always I PREFER to play as a dual swords-woman and marksman --along with leveling up my sneak skills and Light Armor. I am at level 13 and and the only perks that I have focused on in One-Handed, leaving the others at zero perks. That's my issue. Sure my skills are leveling up as is my character, but other that the On-Handed the others again are a zero perks. Even still, I am getting my ass whipped even by the simplest of Draugr.
The other unrelated issue that I have is with is the PC version when I am sneaking and I come up behind whatever, my character, in sneak mod, will swing on the target and stop. Giving the target a chance to beat me to death, because even though I have my finger on the "W"alk button she won't advance --unless I lift my finger and press the "W" again. But that is a whole another issue.