There is a serious danger to accepting advice from a guy who's only level 10. I'm not saying he's full of crap ar anything, but there are some real gaps in his knowledge.
First off, W primes end up taking a lot of skill slots. You will generaly run 4 or 5 attack skills, Sprint is a must, a heal (Troll ungent is good), and that leaves you either 1 or 2 slots to experiment with. But we'll get to that in a second.
Swords vs. Axes: Swords have much higher minimum damage, slightly lower max damage, and bleeding. Axes have deap wound, the ability to attack multiple enemies with 1 attack (great for building adren) and maybe slightly higher average damage when skills are compared.
HOWEVER, Swords do their damage without any elites needed, while the only way I can see Axes beating them is with one of the good elites, which will obviously not be avialable early.
Swords standard skill set is Sever, Gash, Galrath, Final Thrust, maybe Savage Slash as a fifth. Those are all available from quests or trainers, and you get them all long before you get to the good axe skills.
Axes can vary a lot more, and there doesn't seem to be a consensus about which skills are just the best period. Also, Axes don't really have a skill to compare to Sever Artery, which is much better than its cost. Bleeding is amazing at low levels.
Axes/Swords vs. Hammers: Hammers are slower, but they're not twice as slow, something that an above poster hinted at. They do more damage, but not twice as much either. If you decide to go hammers, you will be waiting a LONG time for skills. Very few of them come up early on, and the ones you do get cost a lot of adren., and then there's the whole "lose all adren." thing.
I suggest Swords until after you get to skill caping areas, then figure out what you want to do. I DON'T recomend you switch between them the way the above poster does, you need to get used to the way your skills work, the timing, and positioning issues.
I would go:
Sever Artery
Gash
Galrath Slash
Final Thrust
Sprint
Troll Ungent
Apply Poison
The last slot goes for whatever you like. I would say Ballanced Stance, but you don't get that till pretty late. By the time you do get it, you really need to start using it for Caping, 'cause almost everything knocks down there. None of the above are elites, and I think if I remember correctly they're all available by the time you get just a little past Lions Arch.
For caping I would get Escape early, and run that as your elite while skill hunting.
As far as pets go, this is not from personal knowledge, but I'm told they can be pretty powerfull if you dedicate attrib pts. and skills to using him effectively. But you should have expected that. So now you're talking about 4 skills going into your pet, along with a whole line of attrib pts that you would normaly put elsewhere.
Attributes: W primes almost all use their weapon as prime attrib, followed by Strength and Tactics. There's arguement as to how many pts into Strength vs. Tactics, as both have usefull skills and they are both shield requirements. Strength shields seem to be much more rare than Tactics shields, but that might or might not matter to you.