You won't be dissapointed with either.
The differece in aperture is nothing really, and visually you won't notice it. Maybe the 10" could pick out a few more stars in the middle of a tight glob, but only on a night of exceptional seeing.
I have a 9.25 and have looked through a 10". Both very nice instruments. The C9.25 has a longer tube and so the weight is very similar. This is because the Meade primary mirror is f/2 and the Celestron is f/2.4. This gives the C9.25 a slightly flatter field of view. Not an issue with visual work, but this really helps in astrophotography. Also it is much easier to create an f/2.4 mirror as opposed to an f/2 and this is really the main reason that the C9.25 is so popular. The optics are great because the mirror is easier to figure! Go figure
Not taking anything away for the Meade 10". It too is a great scope.
In the end it'll probably come down to your budget. To get the most out of these scopes (like any scope) you'll also need good eyepieces and a rock solid mount. But that's a completely different story.
Hope this helps
Cheers