[HTC EVO 3D] daneurysm:
I'll engage you OP. I think this is a great topic if we can keep it civil and technical...maybe a couple observations.

The Evo3D was great in many ways:

Battery Life: Fantastic for a stock phone

Performance: Fantastic for a stock phone

Camera: Awesome in good light. Much improved audio quality while recording videos, also in stereo.

Fit and Finish: Top notch. Felt solid, had a good weight to it without being heavy.

Screen: Stunning resolution and as 'reference quality' color as I've ever seen a cell phone screen...and it's huge, which I love.

3D Feature: Actually I found the 3D effect very compelling (even though I thought I'd never use it before the phone came out). 3D video and pics are actually awesome.

Wifi Radio: much stronger than my E4G. Full bars at home no matter where I went. My E4G never fared that good.

Sense 3.0: Very improved polished interface.

3G Radio: Weak Weak Weak, but consistently held a signal when it got one which, to be fair, was most of the time. Great 3G speeds when connected, even with no bars once locked on.

4G Radio: on par with my EVO4G

Custom Roms: nuff said...for now

That said, I did return it and got a Nexus S 4G:

Battery Life: Also excellent for a stock phone..on par with E3D

Performance: Also excellent for a stock phone..surprisingly on par for only a single core.

Camera: Absolutely amazing camera compared to E3D. No contest. Though video isn't 720p but WVGA at max. Advantage NS4G

Fit and Finish: The build quality is acceptable. It's extremely light, though feels cheap compared to E3D. Advantage E3D.

SAMOLED Screen: Fantastic contrast and vibrant color. Very bright and especially usable outdoors. Also has a huge viewing angle. The curve is barely noticable in use. Considering how different (and awesome) these screens are from eachother I'd call this one a draw....apples meet oranges.

3D Feature: Nonexistent Advantage E3D

Wifi Radio: Sucks. Far worse than even the lackluster performance of my E4G. Advantage E3D

Stock Android Experience: I personally prefer this over Sense--but that is a matter of personal preference. This is also a draw for that very reason.

3G Radio: Just as weak as E3D, on average...though most of the time appears to have a stronger signal than the E3D did for me. HOWEVER, this phone sucks at holding a signal. Lots more dropped/missed calls than the E3D and TONS of data stalls and slower 3G speeds all around. Advantage: E3D

4G Radio: also sucks abysmally.

Custom Roms: CM7 installed in minutes after arriving home. A decent dev community...netarchy kernels (65fps!), MIUI runs fantastic...Clear advantage NS4G...for now.

In summation, even for being a whole technological generation behind the NS4G is a very very worthy contender. It is smooth as hell bone-stock, I'd even go so far as to say smoother than the E3D...and one netarchy OC kernel later it blows away the E3D. But this is an unfair trait to compare for the time being. (Though 3549 quadrant is pretty awesome). The camera on the E3D can't compare, however the lack of 3D on the NS4G can't either. The E3D camera, while not as good, isn't so bad that I'd consider it a deal breaker for me..it still performs very well. It is a cellphone after all.

The NS4G is also made to be unlocked (if you wish)...so it just isn't fair to compare that trait. Judge that based on how important it is to you...it's very important to me.

However the completely crap signal acquiring and holding abilities of the NS4G (and lack of update which was due on 7/11 but has been cancelled) have ensured that it will be going back promptly. I can't even wait for the SGS2 to be announced, nor will I get a locked motorola with no certain future at any date. The E3Ds radios are nowhere near as bad, and I'm certain a radio update will fix it up just fine.

The 3D isn't a deal breaker for me either--but I do really miss it. Just sayin'.

In my eyes the E3D is a clear winner in this competition...given the lack of a compelling dual-core phone coming out any time soon and the fact that I cannot keep missing calls I will be back on bored after work tomorrow...which sucks cuz this NS4G has realllly grown on me, but, that radio is just too weak to bear.