I am pretty much a die hard sony fan.... have 3 monitors.... 1 CTX professional line, an ADI Microscan 5gt, and a 20" fixed signal Sun / Sony GDM 1100 or something like that.... but the first 2 are 17" and the last oine is a 20" that can only do a few resolutions....
anyways, if 2 hairlines annoy you when you are in games that happen to have a solid background where you can see the lines, then dont get a sony... but they are the crispest monitors out there.... At least a monitor with a sony tube is what I would choose.
I know some people who have had some problems with viewsonics and power / flickers....
Nec and Mitsubishi would be my second choice.
I dont know what ADI is doing now, but I have yet to have a problem with mine, its been an excellent monitor.
Samsung or KDS would be my third choice... they arent necessarrily cheap, but I know what you are saying about them. They are the best for me to bundle with new systems, not for my desk.