Better is a big discussion, but along the same lines you have to factor in cost.
SVN is free, where as TFS isn't. However; if you have your Visual Studio through an MSDN subscription and this is of high enough level, then you will get TFS2010 for free through your MSDN subscription downloads when released. This may be a factor which tips the balance.
As for the integration with Visual Studio, you can't beat Team Explorer for TFS. However, I have used Anhk with SVN and that works well too. I think the rest of this has been said :-)
Hope this helps.
