Have you ever been to Safeco? I will admit I am quite obviously biased and don't have a very large sample size, but I love it. Safeco Field is probably my favorite place on Earth despite probably being a bigger NFL fan than MLB fan. If you have never been there before perhaps that would explain it, but the sightlines throughout the stadium are phenomenal and despite not fielding a real team in years the atmosphere is always great.
I have a lot of experience with Safeco and not much of experience outside it, but I don't see how Safeco lacks character.
Safeco is a beautiful building and probably appeals to architects. Also, the view is good. But IMO, it lacks the character that makes it stand out as a great baseball stadium.