I don't know how similar the PVP is between TSW and GW2. Both have "reduced size" actionbars. But competitive PVP in GW2 will give boost you to max level and give you all your abilities. So I'd say GW2 PVP is 100% based on skill... whereas PVP in TSW - well, I'm not sure. I doubt they'll gives us all 500+ abilities without any levelling involved.
Closed beta is still underway for GW2, but a April/May release does seem very much possible. I believe the beta started at the beginning of the year, so 4-5 months seems to be a reasonable amount of time before release.
limited skill selection
More action orientated combat
Rated arena (though with gw2 it is at max level)
Tsw has persistent large scale 3 sided pvp
Gw2 has semi-persistent large scale 3 sided pvp
Tsw has ffa fight clubs
Gw2 has tournaments
Both have leaderboards
They have more in common with each other pvp wise than any other current mmos.