I grafted a branch of RF Ostergotland 2 years ago, so I may be able to comment on that one in the next year or two.
I'd never heard of the Bloodgood pear, but after reading about it, it seems like a good one to try.
This page mentions that if a late frost kills the flowers, the tree will put out a second bloom 4-6 weeks later and thus always have a crop. I didn't know that any pears did that...
Interestingly, even though the name has "blood" in it, the flesh is yellowish/white. It was introduced by a James Bloodgood, a nurseryman from Long Island in 1835. AJ Downing describes it as the best pear of its season (late July, early August).
The ARS entry says that it is "resistant to blight, healthy, bear young and regularly, are long-lived". Evidently, it wasn't resistant enough to be long-lived in Lucky's location. But, based on the descriptions I want to give it a try. Maybe I'll request it next year from ARS.