I always thought that the tenders that looked best on them were the 6 wheel ex-C32 tenders. The Z16 and Baldwin ones just didn't look right and the ex-Standard Goods tenders looked a bit too big.
It was never an aspect of looking good when decisions were made regarding an item such as a tender, rather having an engine that had a tender that fitted a need for the work required of it.
The smaller tenders meant a fair restriction in coal & especially water capacities for engines, & one thing that was never called into account for enginemen is when they pulled up at a water column to top the tender, even if under normal circumstances it would not have been necessary, to run out of water OTOH was very much frowned upon.
The Baldwyn tender provided for more than 1 ton extra in coal supplies but a bit less in water than the P class tender & except for the overall lengths was the next best for longer hauls than the 3650gal tenders, something appreciated by those who worked on the engines. The 16cl types were used more in keeping with lightly railed branch lines that had basically no ballast & were more suited to that working, but as many of those lines were upgraded the Pclass tenders were made available of other withdrawn engines.
Most depots that engines allocated to them also usually had spare tenders, & would swap tenders when one of their allocated engines was being sent to workshops, that way they kept a good tender & had the not so good one repaired at the shops.
As for the looks, I did not mind how the Baldwyn tender looked on a 30T as the more open type cab seemed to suit them,