On boats large enough to have either - wheel or tiller is largely a matter of preference. From a practical standpoint, a tiller is simpler and has fewer moving parts to fail at the wrong time. On the other hand, a wheel is more convient for most people - it makes driving the boat, more like driving a carl.
s/v Paloma, Bristol 29.9, #141
Slipped in Bahia Marina, easy access to Corpus Christi Bay and the Gulf of Mexico.