Apples and oranges...depends on you interest. If purely visual and you can handle the size, get the 12 inch. Good scope but only if it is used. Most likely you will need to "tinker with" the scope to get the movement that you want (this is normal). The other scope should work pretty much out of the box and maybe easier to transport.
Is this a first scope? If so get to some viewing nights so you can see the differences under the stars. You will be in a better position to decide after seeing the differences first hand.
Clear Skies!
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