Yep, it isn't just because they taste good that makes bluegill so popular. They're aggressive, smart, brave, playful, tough and very strong for their size. Their body shape gives them an odd leverage to pull and fight hard.
I fish for them frequently and love every minute of it.
Hrangelotti - Whenever the bass aren't biting at the other ponds and lakes, you might as well have some fun fishing that bass-less pond you mentioned with UL tackle and 2-4 pound line. Sounds like panfish heaven