Sony xperia sola vs HTC sensation vs Galaxy S2[Which to buy]

[djabhi003]

I am planing to buy an android phone within 1-2 months and i am stuck with these three.
1.Sony Xperia Sola:
http/www.gsmarena.com/sony_xperia_sola-4408.php

About to be released, Around Rs20,000 = 400$

2.HTC Sensation:
http/www.gsmarena.com/htc_sensation-3875.php

Released last year, Rs 24,000 = 480$

3.Samsung Galaxy S2:
http/www.gsmarena.com/samsung_i9100_galaxy_s_ii-3621.php

Released last year, Rs28,000 = 560$

Now HTC Sensation nd Galaxy S2 are outdated maybe, but still are heavy performance one's but pricier.
The HTC's screen is the main problem as it picks up reflections and is washed out often.And it has only 768MB Ram
The S2 is awesome but the pricing bothers me a bit.
The Xperia sola is a new offering, slick design and dat too for prices rumoured to be around 400$. But it has only 512MB Of RAM.

I Want a phone which will last me atleast 3 more years, i mean taking on newer games and apps and maybe newer android versions too(not that important) but i want the apps and games running smooth.

So if someone could help me out and tell me the bang for the buck phone here.

 

[Kand]

a good alternative to all these could be Samsung I9070 Galaxy S Advance
it has the same processor as Xperia Sola and a Super Amoled screen plus 768 MB RAM

so i think that one will be enough for at least 2 years

http/www.gsmarena.com/samsung_i9070_galaxy_s_advance-4469.php

 

[djabhi003]

Best answer selected by djabhi003.