Ham, with out a doubt I would go for ham first. Store bought is OK but for real ham salad to be enjoyed it must not be machine made unless it is made with a simple hand grinder.. Post Modern meat grinding Machines don't like meat or don't care about taste so these little meat whizzer machines should never make meat salad, EVER!
Next would be Tuna, with onions and celery, Hell no, no sweet pickles in it, you kiddin' me or what!
Then chicken, with less onion and more celery and sometimes little bits of tomato. mixed in, but not always.
Then salmon. Now my friend says salmon is nothing but dog food but I can eat it right out of the can, Red not Pink. Pink is for babies who hate strong tastes. Onion and celery like the tuna but just a touch of horseradish in the mayo.
Then turkey salad, that is if there is ever enough left to make a salad.
Then shrimp salad with sliced tomato, mustard and mayo mix with a little squeeze of lime juice.
Meat salads are particular sandwiches so which kind to you like the best and how do you like them exactly?
Is there a pork salad?