One more voice
I have used both and both are acceptable for Me.--- But without a doubt the tiller is superior for racing, because you can judge the sail trim and boat balance by just a quick look,even if someone else is on the helm. and you can play puffs and work to weather much better than with a wheel. You can feel and respond to the puffs without even looking and you can put the boat in the groove by the feel. You can use a hikeing stick and get up to weather where you can see the jib and and its teltales much better. Some boats today have two wheels so you can get further to weather or to leeward if you prefer, but they still don't respond like the tiller.That said; if racing is not your thing, and less than the most qualified helm person is going to be on the helm, get a wheel.Some years back, a sailboat under power was passing a ferry close aboard nearly head on with an unexperienced helms woman on a tiller, when out of the blue they made an unexpected 90 degree turn right into the path of the ferry and were run over killed. No one knew exactly why they made the sudden wrong way turn, but the speculation was that someone screamed at the woman to turn or go right ( or maybe it was left), and in her panic she put the tiller hard over that way, and of course turned the boat the wrong way. A grisly outcome. Hopefully that will never happen to any of us but I have personally seen experienced sailors, who were not experienced helmsmen, put the helm the wrong way. The latest time was less than a year ago and though no one got hurt, it did make the difference between first and second place in a race. The helmsman did know better but was a little rusty, and he just reacted (incorrectly). He couldn't stop apologizing to the skipper (which wasn't me).