First of all first what is your room dimension? If it is around 150sqft, then 1.0 Ton is fair enough...
Always I would suggest you to go for 5 star rated AC as it saves you a lot of current and audacity level will be low.
Out of LG/Samsung/Onida/Whirlpool, I think the LG Pearl AC is somewhat good..Look at the following link
http://www.in.lge.com/Product/Produc...8&subcat=Split