I'm hugely biased since I own the tan McT, but i'd recommend both the Mct and the Kenilworth if you can pull it off. Very different shoes that will give you some options...
If you have to get one pair, the McT leans casual and the Kenilworth leans more dressed. Both can go either way, but it just depends on what your needs are.
@DNSamurai. This is some pretty good advice here, in terms of how each of those shoes can be worn. The McT is strictly causal for me. The Kennies, on the other hand, are much more versatile for me and can be dressed up much easier (though I feel like my Bleeckers have taken the role of my kennies.
So, if you had to have one workhorse type shoe, than I would go with the Kenilworths. If you want more casual and fun, then grab the McT (in tan!!).