Sony Ericsson is by far the best mobile phone available in the market today. They have just released their Walkman Mobile phone W800i, and it has the best features that a person would want to have on his mobile phone. It has a free 0.5GB memory stick! the 2.0megapixel digital camera works just like a digital camera, and of course the walkman feature! You could listen to your favorite sounds just like a regular mp3 player. and yes, it is still a mobile phone. as if the mobile feature is just a free feature from a digital camera and mp3 player.

Sony Ericssons are also user friendly and there are so many downloadable themes for your phone and free downloadle java games from their website. The designs are hip and not as weird as those Nokia phones. The Philippines is a Nokia-user country but some are starting to get annoyed by Nokia's lack in features, they would add some good features to their phones but will remove another. making it a not so perfect cellular phone model. While Sony Ericsson adds everything to their units to satisfy the needs of the user for a perfect phones.

I mostly prefer T Mobile, their service is very good, I get reception almost anywhere I go including distant countries, such as the UK, etc. They are on the pricey side, but hey good service is never cheap. The phones they offer are pricey, but always the coolest looking included with the latest technology.

IMO,
NOKIA - Very reliable but they do not have decent flip phones.
LG - LG is really working hard and keep making progress. Design is kinda funky.
Samsung - Samsung makes very reliable phones but most of their phones are limited to custom ringtones.
Motorola - I admit Motorola makes very good phones too but they tend to have problems at the charging port.
Kyocera SUCKS!!
Audiovox SUCKS!!

I think it really depends on your personal taste and make sure you buy the one you like otherwise you will be stuck with the same phone for very very long time.