Well, I just got the Aegis the other day, but I really like it. I started out with the OtterBox, but when the Incipio Feather came out, I wanted to try something smaller. Coincidentally, the case on my Trophy is a no-name that is very similar to the Feather, but without the attractive color, bought from the Microsoft Store right after Trophy launch. About the same thickness. I just couldn't use the Trophy without SOMETHING to add a little bulk, and at the time, you'd find a needle in a haystack FAR sooner than you'd find another case for the Trophy. Funny - now that the Trophy is replaced, my wife and I saw not one, not two, but THREE different cases at Fry's a couple weeks ago for the Trophy.
I want protection. But I also like the bulk, but I decided that the OtterBox was a bit too much bulk for me, and I wanted to get back to a vertical belt holster. I was a paramedic for 10 years (been a while tho - almost 13 years since I touched a patient on a regular basis), so I've ALWAYS had stuff on my belt. Case with bandage scissors, trauma shears, window punch and more, a radio, a pouch with rubber gloves, a flashlight (carried in daylight hours as well, carried for defense)....... So I'm not a phone-in-the-pocket guy. My first cell phone was about 18 years ago, and I used the pouch that I used to carry my Minitor pager in when I was a volunteer fireman. I've been a vertical belt case guy since. I've tried horizontal a couple times, but don't like them.
So since I like the vertical case, and it's hard to find a case large enough for this phone with a case on it, I jumped at the Feather, and found a
case. I like it, but there's a bit extra room in the case. When last week I saw an Aegis for sale with the same belt case (and other stuff) on ebay, for something like $22 or $23, I thought I'd try that. Same day, I saw another phone case, an
APEX Hybrid, and given the under-$10 price, thought I'd get it too, and try it. It hasn't arrived yet, and the tracking number is broken, so I'm not sure when it will come, but I'll report on it when I get it.
All that useless info to tell you what my preferences are like... For now, I'm using the Aegis. I've found one more thing about it that I don't care for, but would easily be remedied with a razor (but for the moment, I'll hold off on that). If you leave the power or headphones plugged in for a long period, it takes a while for the silicone to "relax" so that it stays in place for the plugs that cover the USB and headphone jacks. I haven't dropped the phone with it, but it is far more protective than the Feather, but without adding TOO much extra bulk. It fits well in the belt case. This case doesn't allow the phone to slide in and out as smoothly as the ones I've had in the past, but it is a cheap belt case, so I expect that.
The Aegis isn't perfect, but right now of the cases I have, it's the one I'm using every day. It offers protection without as much bulk as the OtterBox (though I don't think it could do so without a mark on the case, like the OtterBox can). The buttons are a lot easier to press than with the OtterBox, and they protrude a bit so they're easy to "find", unlike the Feather, which leaves the buttons recessed a bit. Just a couple of flaws with it that I've found so far, and at the moment, I can live with them. Being OCD, though, I'm sure I'll eventually get really twisted out of joint over the silicone plugs not fitting into place correctly, and will cut them off.