Sharp dog legs do eat up a lot of land, presuming you don't want to put anything in the inside corner (you really don't.....). They aren't really graceful. There is no guarantee that new tech and longer drives won't make them as obsolete as some of the Golden Age ones. Medinah renovated to get rid of several of theirs, like 18, 16 (current), 9, etc. Just one example, noted because they couldn't keep getting tournaments until they did remodel those out of existence.
And, what do you really gain with a dog leg at say, 60-90 degrees vs. one 30-45 degrees? Or even 20-30 degrees?
Mike and Don's seems pretty good from description. Its okay if there is something other than trees to guard the inside corner.
Or as my old boss used to say, there are only two instances where a sharp dogleg doesn't work.....first is where there are trees, second is where their aren't.