Teresa for me carries the possibility of the dreaded
Terry /
Terri, which I find prohibitive and incurably ugly.
Teresa/Theresa never ended up as my favorites but I love the little extra bump it gets with
Theresia. For me that is what takes it from being a 1950's sort of companion to
Sharon and
Deborah to something more complex and regal.
One of my sort of 'top ten' combos is
Theodora Theresia.