I know that wheelbase will be a function of top tube length and steer tube angle... my question is, does wheelbase effect steering radius (how tightly can turn) solely, or are there other considerations.

i look specifically at similarly sized specialized secteur and allez... in a 61cm bike, the difference in steerer angle is 0.5*, and WB is 2-3cm... i know that the allez is the 'road race' geometry... when looking for a new bike if it is not listed as a 'comfort' or 'road race' bike, can this be determined somewhat by wheelbase in it's responsiveness? i would like to find a bike that i could ride in a cat 5 crit as well as cruize on a century