I've used almost every brand, from Nokia, Samsung to Motorola and now RIM Blackberry. I honestly can say that Motorola is the most user friendly. Nokias malfunctioned too often. Samsungs were alright, but it was a hassle to get used to their menu's. Motorolas also took a beating! I've used their phones for years and they all lasted. I only upgraded because i wanted newer features such as Internet, Video, Etc.
Great Topic!