A bit of advice from the Christmas Clotheshorse...
I purchased a number of shirts from
Brooks Brothers and
Charles Tyrwhitt. Both are of incredible quality, are truly non-iron (but I like the extra sharpness of a light ironing), are very comfortable, and can be expected to last quite some time. Both brands were on the low end of Joshua Kennon's
'Dress Shirts for Men 101'. Both purchases were 'off the rack. - neither was bespoke or made to measure.
Happy, happy, happy. And absolutely fearful of what it means to buy something
better... Yowser...
But, now that I am better at gauging what I like, here goes a bit of unneeded advice (as if you all don't get enough of that already

):
I think the Brooks Brothers shirts should probably be purchased with a sleeve length one size smaller than what one buys at the department store. The neck size is perfect. And, I would gauge the shoulder fit tremendous. I, personally, could use a bit more slimming in the waist - but I think that means made to measure and/or bespoke. The stuff I bought last year was a 34 sleeve - now I think a perfect sleeve for BB is probably a 33.
Contrarily, I think the Charles Tyrwhitt shirts should be bought one size larger in the sleeve and neck. I'm not saying anything negative at all. I am happy, happy, happy remember. But I can increase the neck size a half size which would result in a couple of inches as the shoulders. I probably want an inch - but now we are talking made to measure and/or bespoke. Because I took receipt of the BB shirts before I ordered from the Limeys on Jermyn Street I figured that a 34 sleeve was a proper fit. Now, I think I would bump a half in the neck and get a 35 sleeve.
Now, I am just being picky. Maybe I should join Joshua and be the first besotten bespoker in the shop:nuts:. Just think of a gubmint flat shoe (kinda) sitting around in $2K of clothes and a Rolex. I wouldn't be able to drink my first cup of coffee before I was dragged to the water torture chamber. We have ways of making you talk:laugh:.