HTC Desire HD vs Samsung Galaxy S II vs LG Optimus GT540

Samsung Galaxy s II
( The Galaxy S II was given worldwide release dates from May 2011, by more than 140 vendors in some 120 countries.)The Galaxy S II has a 1.2 GHz dual core ARM Cortex-A9 processor depending on either one of two SoCs.

HTC DESIRE HD
The HTC Desire HD (codenamed: "HTC Ace") is an Android smartphone by HTC Corporation. It was unveiled at a press event in London hosted by HTC on September 15, 2010, and was made available for sale in October in Europe and in January, 2011 in Canada. The Device is HTC's flagship device in most markets, until the release of their new line of flagship models, the HTC Sensation and the HTC Evo 3D.

LG GT540
The GT540 is designed for first time smartphone users and is available in four colors: black, white, pink and silver. First announced in April, 2010 and first sold in June, 2010, the GT540 is available from wireless service providers worldwide.

Top 5 FEATURE COMPARISON :HTC DESIRE HD  AND SAMSUNG GALAXY S-II

	HTC Desire HD	Samsung Galaxy S II
Looks & Style	Extremely beautiful and stylish phone, Large display screen and curved shape from top and the bottom side	Slim and light Smartphone in aggressive and stylish look with Rounded Edges
Display & Screen	4.3-Inches LCD Capacitive Touchscreen with480 X 800 pixels and 16 Million Colors support.	4.3-Inches Super plus AMOLED Capacitive Touchscreen with 480 x 800 pixels
Operating System	Android 2.2 Froyo	Android 2.3 Gingerbread OS
Processor & GPU	1 GHz Scorpion Processor, and Adreno 205 GPU Qualcomm MSM8255 Snapdragon	1GHz dual-core ARM Cortex-A9 processor
User-Interface	HTC Sense	TouchWiz 4.0
RAM & ROM	768 MB RAM	1GB RAM

The LG GT540 Optimus, also known as the LG GT540 Swift and the LG Loop GT540, is a mid-level Android smartphone designed and manufactured by LG Electronics. Released running Android 1.6 Donut, the device can be officially upgraded to Android 2.1 Eclair via an LG software release.