1. I went stainless for it will never tarnish, and i like that it matches all my
fittings/keggles. Although remember, copper is WAY WAY easier to bend to fit.
2. I put a sight glass on the HLT and BK from brewhardware.com and I use them both
everytime. they are not glass so they wont break.
3. no false bottom on BK, I put a stainless screen from Mcmaster-Carr similar to the
hop-stopper for filtering hops and anything else you may put in the boil so it wont
clog the march pump. And if you don't do secondary ferm then you wont be sitting on
hops for a month.
4. Welded look nicer. I guess the BK doesnt matter cause you are boiling, but I went all
weldless so I can take it apart and clean everything. I recirc after my boil thru an
ice bath in my HLT so if the welds arent perfect some nasties may have a place to
here is a pic of mine. many more detailed ones on my page gallery if you can see them.