my personal opinion is that it is way overrated in today's day and age. it was great in the 80s when it actually brought the polymer striker fired genre into the main stream, however today there are way too many other offerings to justify a collection full of glocks
they are good guns, but reliability has slipped in recent years and they seem to be a one trick pony at this point.
I hate it. the triggers are absolute garbage. otherwise, they look cool and ergos are pretty decent. the M&P shield triggers are a little better though so not all M&Ps fall into that category.
the only gun I've ever picked up with a tirgger worse than the M&P was a PPQ. it was heavy, spongey and never seemed to reset or break in the same place twice. I brought that little experience to the board and ended up with 20 fan boys telling me to go buy a hi point if I couldn't handle a real gun.
I have no experience with that one. I toyed around with the idea for a long time and even priced out a few but the cost to have my local FFLs special order was way too high for a curiosity purchase. they seem like a neat gun but I have to wonder how much of the price tag is just because of the H&K on the side.
no experience with that one personally, but every other sig I've ever handled has been exemplary. the triggers are awesome, fit and finish is great, and they are definitely high quality handguns. the price tags on most however make sigs a bit too cost prohibitive for my liking.
this was another one of the fanboy guns that I could never get into. I like a lot of FN guns but the FNS is in the wrong price bracket in my opinion. I compared it side by side with a ton of other pistols, the fit and finish compared to other guns of the same general price was complete junk, it was more in line with the guns that were priced $150 lower. trigger was also not that great(noticing a pattern with how I rate my opinions on guns?)
underrated pistols, but require a little work beforehand. I have owned 2 SR9s, one compact, and the other was their economy model. the compact was my daily carry for about 2 years and still gets used for that purpose every once in a blue moon but mostly nowadays I loan it out to a sibling if we're heading out into kitty cat territory. the 9E is definitely a rougher cousin but is fully functional. the little work beforehand, and I'm not recommending that anyone else does this, is that I've removed the mahg disconnects in both of my guns. if you go to the ruger forums most failures that people have are because of improperly seated mags and I really don't need that hassle in my life when I'm firing under duress. for the price range they are in though, they are extremely hard to beat.
ok now time to step up on my soap box...
ok maybe I'll forego that this time. they are without a doubt my favorite line of handguns. the triggers are not great but better than most other service pistol striker/poly framed hanguns out there. the ergonomics are perfect for me. the ammo capacity is higher than anyone else in everything except 45ACP. I have never once encountered a failure that was not ammunition related. I am more accurate with most xdms than any other non-competition model handguns. lastly, they handle recoil way better than most people give them credit for.
out of your list the only gun I would even compare to the XDM would likely be the sig, but without personal experience with that particular model, I would have to say that the xdm is the first one you should look at buying. last on my list would be the walther with the M&P nipping at its heels.