An addendum to my recent post. This goes into good detail on why square taper and ISIS bottom brackets, that use larger bearings, are more durable than Hollowtech, etc that use smaller bearings. https://janheine.wordpress.com/2014/09/11/skf-bottom-brackets-after-5-years/.ISIS had a well deserved reputation for being an unreliable and fragile bottom bracket design since the patent was in the public domain and anyone could, and did, make them. Most SIS bottom brackets were cheap and unreliable. Shimano's Hollowtech I Octalink design was similar but far better constructed and more durable. Both used smaller bearings than either square taper or external bearing designs. Like Russ, I take Jan Heine's recommendations with a lot of salt.
As to Surly, I think Russ gives them too little credit. Yes, they are a QBP house brand provide many niche products the big makers (Trek, Specialized, Cannondale, etc.) neglect and provide durable well made frames at very reasonable cost. They are not made of "cheap Chinese steel" but of decent quality Chinese Cr-Mo steel and assembled with good quality welds and properly aligned. They are far more than "nostalgic" and, indeed, pretty much invented the current "Fat Bike" design.