Recomended shell - sh, csh or ksh?

[QQ11 at LIVERPOOL.AC.UK]

This question is related partly to my recent question on a editor
for un*x users. Now for the shell.

I would be interested to hear from any organisation, especially one with
a research/teaching environment, who has decided on a particular shell
and why.

I'm interested in how you made your decision, whether more consideration
went into interactive use than programming use, whether the choice was
correct with hindsight and if you didn't use sh/csh/ksh, which one did
you select and why?

Please can you send mail and I will summarise. Thanks very much.

Alan Thew
University of Liverpool Computer Laboratory
Bitnet/Earn: QQ11 at LIVERPOOL.AC.UK or QQ11%UK.AC.LIVERPOOL @ UKACRL
UUCP       : ....!mcsun!ukc!liv!qq11        Voice: +44 51 794 3735
Internet   : QQ11 at LIVERPOOL.AC.UK or QQ11%LIVERPOOL.AC.UK @ NSFNET-RELAY.AC.UK