The only reason i'm not going for lg is because it can't play sd video and low colour depth, average music player interface and I've made my mind. If you have purchased lg then let me know how it feels
It cant play SD video? What does that mean? You have no information n I really want to help u, which is y i typed so much. It plays everything on the SD card, even Avi, Divx, but i stick to Mp4.
Average music player? The audio quality on LG kicks ass (not on speaker tho) n I was amazed to here the in-ear sound quality to be so good ! In case u find the volume low, use the software Wavepad to amplify the volume of the mp3 files. If u're talkin abt the in-built music player app, no in-built app is worthy on an Android phone, coz u have faaar better apps available for free. I listed those music players for u in my previous post, which r kickass. I have tried 1000s of apps on my phone.
The color depth is stunning on the Optimus, trust me. There's no visible advantage on the Galaxy 3 screen, but the resolution is poor on G3. Also, Optimus has a dedicated GPU (Graphics Processing Unit) for playing high-res and 3D games, while G3 doesnt have n hence lags too much for the purpose.
If u r a gaming freak, or u like capturing videos, or if u plan to use the phone for reading pdf/doc/ppt/xls dont go for Galaxy 3, since it has low-res, which looks pixelated on zooming.
If u need a capacitive screen n pinch to zoom, go for Galaxy 3, coz it has no other advantage over GT540. LG Optimus One is much better than both these phones.
Optimus GT540 lags on Android 1.6, but I recently upgraded to 2.1 n it kicks ass. Moreover, a resistive screen can be touched using any damn thing in the world, including pens, earbuds, anything, but Capacitive screens can only be touched using ur fingers, as they need charge to register a touch.