Daewoo Bus, Rawalpindi
My family has been using Daewoo exclusively to get around Pakistan. We are very impressed with the quality of service. Buses are clean and depart on an exact schedule. Even in the most backward of villages, I found the stations to be very well maintained and they actually had clean restrooms (a rarity in Pakistan)! The fares are extremely cheap if you are a foreigner (the most I ever paid was 250 rs-about$4 US).