LG . . . what the hell! As Elrond said the SE devices are true bits of engineering, specifically the K800i is rock solid. Although pretty much any SE in vanilla stylee (minus operator bloatwear) are usually damm good. Weather or not the Ericsson - SE chip sourcing shift will change this we'll have to wait and see (http://www.theregister.co.uk/2008/08/21/ericsson_st_merge/).
But LG come the fuck on. I can't name many people who know the remotest bit about mobile technology who would use a LG handset and the only people who do have bought an LG for its aesthetics sacrificing actual functionality (every tried sync'ing an LG?). The spec often looks good on paper but take an LG out the box and you'll be sending it back swiftly if you've any sense.
Of course this research is kind of defunct as the majority of handsets will be 'smart phones' in the coming 24 months. So Symbian S60/80, WM 6.5 and 7 when it arrives. Not forgetting Android lots of Android. Mine's the one with a SE in the pocket . . .