Originally Posted by ZenSlinger
I also know you should usually go with what intuitively feels the best for you, as all riders are different.
That right there is the most important part. If possible, see if you can take each size out for a few hours to get a really good idea of how each fits you, and decide from there. Also think about what things can be fixed by adjusting seat height/seat, and replacing the stem/handlebars.