Out of those 3, Sony makes a better LCD HDTV. However, if I were you I'd look into Samsung too because you could get a larger screen than 42" in a Samsung for about the same price as the 42" Sony. Bigger is better in terms of HDTVs.
Basically, Sony and Samsung are the only LCD companies you should be considering in the world of LCD. I'd opt for one with 120Hz because it will help with the motion blur during sportscasts.
If you had the choice between the following tv's, and all were basically the same price, which would you choose and why:
Sony 42" LCD 1080p (model number KDL-42V4100)
Phillips 42" LCD 1080p 120hz (model number 42PFL7403D-F7)
46" Sharp Aquos LCD 1080p (don't have model number)
I've never had an HDTV (I just discovered fire, so I'm progressing rapidly), and am wondering if the 120hz will be that noticeable for me, or if I should just go with the bigger tv.
Thanks for your help.