Is the Xperia ray good for: Chatting & multitasking is good and easy ?

i want to buy a new phone i have a nokia 5800 xpress music i want to buy nokia 603 or sony ericsson xperia ray ... i think that nokia 603 have a software that i like and used to work on it and xperia ray have an android but i don't like it .... what shall i buy ??!