In my opinion XP is much more stable then 98SE. Heres my sinario coming through your stereo (just had to say that):

I have DSL on SE. Everytime I turn my comp on, five hours to load, then, it restarts! Wtf is that? Im not going to have that.
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I have XP. Everytime I turn my comp on, five seconds to load, then, it works! Wtf is that? Stabibilty, my dear Watson, stabability.