Digital Camera Product Review Consumer

Should I buy Samsung Camera?
My old camera has worn out so I want to buy a new one. I am weighing the option between Sony, Samsung, and Nikon.
Here are the links.
For Samsung,
http://www.samsung.com/us/consumer/photography/digital-cameras/compact/EC-TL225ZBPOUS/index.idx?pagetype=prd_detail&returnurl=
For Sony
http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921666073335#overview
For Nikon
http://www.nikonusa.com/Find-Your-Nikon/Product/Digital-Camera/26189/COOLPIX-S70.html
These are the cameras that got my eyes on. Ok. My dad said Samsung is not that good, and that Nikon is the good one. But I read the reviews and they said the quality of photo is really poor in Nikon. So what should I choose? or Can you recommend me another brand or another model with touch screen. I would really appreciate it.
I recommend a top brand of digital camera such as a Canon, Nikon, Sony, Panasonic.
These are good quality digital cameras (Good amount of mega pixels, Good zoom, Small and compact, etc.) with price around $200-$250.
1.Sony Cyber-shot DSC-H55 : 14.1MP, 10x optical zoom Sony G-Lens, 3.0-inch LCD screen, HD Movie mode (720p), Capture breathtaking images in Sweep Panorama Mode, iAuto automatically optimizes camera settings, Smile Shutter technology automatically captures a smile, etc. (Announced : February, 2010)
http://www.amazon.com/gp/product/B0033VKKB2?ie=UTF8&tag=garnavgpsrev-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B0033VKKB2
2.Nikon Coolpix S8000 : 14.2MP, 10x wide-angle optical Zoom, 3.0-inch VGA (921k-dot) Clear Color Display, 720p HD movie recording, Creative Slider creates pictures, 4-way VR Image Stabilization System, etc. (Announced : February, 2010)
http://www.amazon.com/gp/product/B0034XIM82?ie=UTF8&tag=garnavgpsrev-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B0034XIM82
Other good quality digital camera :
1.Canon PowerShot SX210IS : 14.1MP, 14x Wide Angle Optical Image Stabilized Zoom, 3.0-Inch LCD, 28mm wide-angle lens to capture more in your frame, HD shooting capability at 720p with stereo sound plus HDMI output, DIGIC 4 Image Processor with evolved Face Detection Technology, new scene modes, Face Detection Self-timer, Red-eye Correction, etc. (Announced : February, 2010)
http://www.amazon.com/gp/product/B0035FZJM6?ie=UTF8&tag=garnavgpsrev-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B0035FZJM6
Ricoh CX2 Digital Camera Review