A really difficult question?

I have a question, which I am really struggling with.

There is a series that has game on the Wii and the second entry is coming in a couple of weeks.

The first game (which I just rented) is almost completed and has of the features of the second entry. Except, the second entry has online, which I am not using, since I need an access point and I don't have and the second entry has a few new characters.

What do you think I shuold buy, the first entry or the second entry.

P.S: For those who haven't got it yet, I am talking about Dragon Ball Z Budokai Tenkaichi 2 and 3 for the Wii.