Ah, I see. geometry is something definitely you should consider. If the allez fits you better you should go for the allez. Although, I always thought the allez sprint has a pretty aggressive geometry. That aeroad must be quite small for you.
If you could only keep one and if you plan to use it mainly for racing, go for the allez sprint disc. I’d vouch for it 100%.
Transfer the parts over and post a picture here after you’re done, would love to see it!