Have you tried Envy? The ones I've gotten this year have been a great combination (for me) of crispness and great flavor.
They are very crisp and sweet without the tart flavor other crisp varieties seem to have. They also don't go brown after cutting for a very long time.
Definitely worth the slightly higher price in the supermarket. I very much miss them when they are out of season.
Now if the pears could be just as good.