Pear wine can turn out weak tasting because pears don't have a really strong flavor. I've tried a few things to enhance the pear flavor:
* Use lots of pears and little or no water
* Add acid blend to bring the pH to around 3.4 or 3.5
* Add some powdered grape tannin to the primary (depending on the pear variety)
* Consider using a yeast that ferments more slowly. EC-1118 ferments vigorously, which drives off some of the fruit flavor. Cotes des blanc is on my list of yeasts that I eventually want to try. Look at a yeast chart for one that "enhances varietal flavor."
* Fermenting at a lower temperature is supposed to preserve more of the fruit flavor. I do that by freezing my pears and then starting fermentation during the winter when my kitchen is cooler.
* Consider aging on oak chips (if you add tannins or oak, you need to age it for at least 6 months)
* Back sweeten before bottling