I have a lot of thoughts for how to loan - so many that I can justify just about any loan!

I too am trying to loan to every country, and keep my loans *kind of* spread out among countries and MFIs, so that I hopefully won't be too affected if some disaster/crisis happens somewhere. On the other hand, I have many loans to Kenya and Tajikistan- where I made them on purpose after learning of troubles in those places.
I also try to do agriculture loans because of the rising food prices recently, although I generally stay away from loans involving the raising of animals for meat or butchers, since I am vegetarian (however, I will loan to dairies or loans specifically for egg production or for farm working animals, etc).
I also try to stay away from retail outlets where they obviously sell a lot of candy, cigarettes, or alcohol.
After reading "Three Cups of Tea" I have a soft spot for loans in Pakistan, Afghanistan and Iraq, to hopefully provide more options for poor people there, so they don't become drawn into or dependent on radical religious groups.
I also have a soft spot for countries that have ranked Low on the Human Development Index (I posted a spreadsheet with the listing of HDI here:
http://www.kivafriends.org/index.php/topic,226.msg23783.html#msg23783).
I also try to spread out the time that my loans come due, so I have a semi-constant stream of re-loans available to make (made easier using the spreadsheet Kivafriend Chris put together:
http://cjw.me.uk/kiva/)
If the loan description indicates hard circumstances the lender has had to endure (being an internally displaced person, having been a victim during a war, working way too many hours a day or in harsh conditions, etc, etc) I know I am more likely to loan to them as well.
I also have a soft spot for bookstores, or things like pharmacies, medical clinics, or schools which hopefully directly positively impact the community. Also, some writeups indicate that the borrower trains other people in their skill or craft, which I like.
I also sometimes look at the MFI rating and interest rates, although I have made loans to 2 star MFIs and very high interest ones as well.
Of course I have a ton of loans that don't necessarily meet any of those thoughts -that I just got because I liked it better than others for some reason among the ones that were available that day!