Galaxy S4 - Exchange ActiveSync picks wrong Display Name
For posterity's sake, I'd like to point out that after doing research online, I have found out that this is an issue plaguing Samsung Galaxy S2 and S3 as well. Most of the discussions on this issue end with, "Why don't you just get a @gmail account?"

Since I refuse to have an email with numbers in it, I am going to stick to my more professional looking email on @live.com. I don't want to put an ugly email like jsmith223@live.com on my resume or any other correspondence for that matter.

Anyhoo, long story short, if you have a hotmail email address (@hotmail.com, @live.com, @outlook.com, etc) and you value a synchronized mailbox (meaning, having all sent and read messages marked as such on your desktop, web mailbox and phone regardless of where you sent or read a message), then don't get an Android device until there is concrete evidence online of someone being able to show that it works. POP3 is archaic technology from the mid-90s. IMAP isn't a whole lot newer, but you can still get by with IMAP. Unfortunately, Microsoft has refused to offer IMAP services on hotmail accounts. So your only options are POP3 and Exchange ActiveSync (EAS).