I'm planning on buying a new android phone (I previously used a Galaxy Ace) and have done a bit of research to narrow down my choices, but I'd like some advice to help me decide between them. I don't mind if the phone is parallel imported, and I'm aiming to spend around $500 NZD though I don't have a strict budget.

Audio, display, wifi, and GPS quality are important, and I would like to avoid any glaring deficiencies in other areas, but realize there will be tradeoffs since I'm not buying top of the range. Here are the phones I'm trying to decide between:

- HTC Sensation $560

- Sony Xperia Arc S $535
- Samsung Galaxy S Plus $500
- Samsung Galaxy W $450

- LG Optimus 2x $434

Those prices are from fairbuy[dot]co[dot]nz, and include $30 shipping. I don't know if this is the best parallel importer to buy from, but mobicity or others may have comparable prices.

I've included the Sensation although I'm not convinced I need to spend that much on a phone. The LG is a bit older but seems to have much better specs than I would expect given its price. The Xperia Arc S, Galaxy W and Galaxy S Plus all share the same chipset, CPU, and memory but differ in other ways. I'm leaning towards the S Plus, but then $60 isn't much more for the Sensation...

Any thoughts? Thanks.