::devil:: Big Bad ::devil:: here. Well here's my opinion on the matter
Angelus-vs-Spike: Spike
Angel-vs-Spike: ???
Lemmie explain. In the battle between Angelus and Spike, I would think that Spike would win this easily. Angelus never really striked me as a good fighter. A good tactician-yes, A good torturer-yes.....but never really a good fighter. Spike now with a little bit more experience under his belt would fair easily against Angelus-IMO
Now with Angel and Spike I honestly think it could go either way, depending on if weapons are used or not. Looking at Angel, Angel never seems hesitant on bringing a weapon to battle. There are countless times we've seen him carrying a great-axe, retractable wrist stakes, and even at the series finale he was seen sporting a broadsword. Spike on the other hand, is rarely seen using weapons. Spike seems to use a more "hands" on approach when it comes to fighting his opponents. So if weapons were to be used Angel should have the upper hand because he seems to have more experience in using them than Spike would.
But.....in a fist to fist fight at this point and time I would think it's that the winner between Angel and Spike would be whoever gets the upper hand and capitalizes on it. Neither one of them has an ability or special power that could be used in battle to help shift the tide to their favor, so it would come down to whoever seems an opening and uses it first.