I'm not a huge fan of SE Arabians just looks-wise (I haven't had much experience with them personally). To me, the majority of them don't really look like they could survive a long day of work based solely on their bone structure. I'm sure they could and would survive, just the fact that they look like they couldn't, for the most part, kinda puts me off.
My favorite are Polish bred Arabs. I love love love how they're generally chunkier but not to chunky. Lacey is heavily Polish bred (with a smidge of Crabbet) and I love her look. She definitely looks like an Arab and she has the Arab personality that I love but she also has the bone structure to go all day over all kinds of terrain and not really be any worse for wear, even at 26 years old!
However, I love Arabians as a general rule so I wouldn't not get one I was interested in because it was SE instead of Polish, yknow?
Fabio - 13 year old Arabian/Lipizzan gelding
Hazel - 14 year old Angora goat
Atticus - 4 year old LaMancha/Alpine cross goat
Rest peacefully, Lacey.