What would you ask of a Bread Board, other then 'better, tighter connections'?
What would be your dream development 'Bread Board'?
Much more area. Like a table-top. 3+ voltage rails, not just two, and bench supply
built in with multiple isolatable areas. Failing a table top then a large brief-case
for portable demos. Various goodies round the periphery is always nice, but
area area area.
Oh yes, 6 contacts per strip, not 5, of course.
If you're going that big, why limit it to 6 terminals? 10 would be better (5 for thin wires, 5 for thicker wires).
I'd include a built in multimeter, transistor tester, loudspeaker, battery holders of various sizes (for when you're not near a mains outlet) and a variable power supply. Also handy would be a set of compartments to hold components (some lined with antistatic material).
When you've added all those, you'll also need a crane to lift it.