I´ve always liked Nokia´s for a couple of reasons. The operating system is pretty much the same for all models so you can pick a new one up and get to grips with it easily enough.

 
Also, the batteries and chargers are very similar. Even if they weren´t the same size you used to be able to borrow someone´s nokia battery when yours died and make a quick call. And although the power chargers have improved, charging much quicker, even the old ones come in handy every now and again.
 
I´ve got a nokia 8800 and love it. One of the main complaints people have with it is the battery life. It doesn´t bother me since I sit in front of a computer all day with an old nokia charger handy in case of emergencies and then when I get home I can just drop the thing in the super cool cradle to charge if it needs it.
 
What I tend to do though is just use the spare battery it came with and swap them when it dies then drop this in the cradle so even when it´s completely dead I can just change it and be off without waiting an hour for it to charge. Brilliant!

 
I did notice something this morning though. Whenever I used to borrow/lend someone my battery in an old Nokia, you used to turn it on and have to put in the date and time again…. I haven´t done this with mine yet. Does it have another mini battery inside as well or a capacitor that keeps the clock running for a minute or two…? This phone just keeps getting better.
 
Oh, and I still haven´t managed to break it. Or my iPod Nano.