Well, a while back, a user by the name of "jump" created a thread with the title "Who is Bruce's best love interest?"
The thread / poll is still open, but at present Catwoman has such a commanding lead that it's laughable. (Presently 179 votes for Catwoman; next closest is Talia al Ghul at 45 votes when last checked.)
So, for the heck of it, we'll try this again, but we'll leave Catwoman (Selina Kyle) off of the list. And I've also dropped three other options from the previous thread who received either no votes or just one vote. I did add some new possibilities to the poll as well.
The new list of options consists of:Andrea Beaumont
orig. Batwoman (Kathy Kane, later Webb-Kane)
Black Canary (Dinah Lance)
Julie Madison
Linda Page
Nocturna (Natalia Knight)
Poison Ivy
Sasha Bordeaux
Silver St. Cloud
Talia al Ghul
Vesper Fairchild
Vicki Vale
Wonder Woman
Zatanna
Other (please state, but NOT Catwoman / Selina Kyle)
And, for the heck of it, here's a little something originally from Batman #261 (March-April 1975):