I had a good think about this and I think I might change my answer to George Boyd.
George Boyd is our most overrated player ever ?
Richie Appleby
Not many got to see him play to be able to rate him
Depends on what you mean by overrated.
If you mean rated highly at the time they joined, and then were crap for us (Whatever else they might have done), then it is probably a tight race between Bullard, Ben Arfa, Appleby and Jamie Forrester (Hateley was already practically retired so I am not sure if anyone had real hopes he would be good for us).
If it is players who were lauded by Hull fans at the time they left, but probably weren't actually that good in hindsight, then Cameron Stewart, Paul McShane or Alan Fettis (1st time round).
David Brown.
'Big' signing from Man Utd and although being a young kid and open to improvement he went on to be a regular for ages but still stayed generally crap.
Andy Brown.
Less said about him the better.
Paul Hunter. Scored for fun in Scotland, signed for a big fee and was gash.
ThisAlf Wood ....
David Brown was never a big signing. He was a decent finisher in a very average side for us. Scored against some of the 'big' clubs we played against in those days. Bolton away in the FL Cup being one, tennis ball game, and v Chelsea.David Brown.
'Big' signing from Man Utd and although being a young kid and open to improvement he went on to be a regular for ages but still stayed generally crap.
Andy Brown.
Less said about him the better.