Favorite thing: I would strongly recommend you to have Islamabad map with you. With out map this city is difficult to explore, especially the plazas and markets. Most of shops have map of Islamabad with them, you can also take their help.
Buy a Map! OR simply print out this map. Its one of the only planned cities of Pakistan. So, You won't get lost in Islamabad. The Traffic & population is relatively less as compared to other cities of Pakistan.
Fondest memory: Met some really nice people from Islamabad through Internet and have lots of memories related to them. Have spent a nice time there.
OK there are a few drones according to all of the news sources. Eurasia Review reports the first drone strike took place in June 2004 in South Waziristan. Under American President Bush, there were about 21 total drone attacks, killing perhaps 177 people. Under President Obama, attacks have increased tremendously with 87 drone attacks, leaving 700 dead (data as of August 15th 2010). Some reports indicate that these drone strikes have killed over 600 civilians and just 60 militant leaders.
C. Christine Fair writes, however, that the so-called "innocent" civilians are often supporters or collaborators of the militants that were targeted. She even notes that residents of the FATA know the drones are precise, so instead of fearing the drones, the locals just avoid people who might be targeted.