If you find yourself hating the SoulCalibur series from the get-go, you just simply need to be more patient. Underneath the simple exterior lies a game that is so strategically deep and rewarding that I cannot stop playing it for more than a few days at the most.
At its core, it's a 3-Dimensional fighting game. Easy as that.
Scratch the surface and you find cool moves. Dig deeper and you find ways to get around those moves (Hands down, 8-Way Run is the best innovation in fighting games since the addition of a 3rd dimension, period). Then you learn how to properly evade and defend against these moves, and launch appropriate counterattacks. This may seem very daunting at first, but trust me on this, this game is far more satisfying than the Tekken or Dead Or Alive series.
Once you familiarize yourself, you'll begin to see the small nuances of each character. Their speed, their attacks, their range...it all adds up eventually, and I found myself playing less of a fighting game and more like playing virtual chess moving at dozens of maneuvers at once. Feints, fakes, deception: these all play a part in the vast mechanics of SoulCalibur 2. It helps to have a friend (or friends, preferably) to learn with however, seeing as the computer opponents have no real gray-area - it's either easy as pie or tough as nails.
Once you discover the exquisite, artful fighting game that lies underneath, you'll be thanking yourself for the best $20 you ever spent. I guarantee it.