Sony's top cameras - DSC-HX5V, DSC-H55, DSC-W370 - slight differences ..... significant?

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Hi Guys, Love your site! Keep up the great work.
Have narrowed a camera choice to Sony and have narrowed choice between the H55 and the HX5V. Though I know there are other differences, the main concern for me is that the 5V is 10.2MP whereas the H55 is 14.1. Do you feel this is significant? I originally was going for the H55 until I found the 5V with it's higher movie quality and GPS (I'm an Architect).
I also like the W370 except for the slower "continuous" shot ability to the two mentioned above. Again, I know this one as well is lacking in quite a few of the other features of the other two.
Any comments appreciated. If possible would appreciate a reply to mstrrktek@gmail.com.
Thanks.