Just curious, where would this thread go beyond the basics of LA/ECL? I can think of so much information that can be explored, such as what niche/role monster PCs could fill, whether they are worth their ECL, how they interact with epic rules etc.
It's going to be very basic. So not just questions of ECL, but how the creature types work, where you look up their features, and what you get from various things (polymorph, etc.). I'm not going to pass judgement on what are good or bad choices, but there may be an addendum at the end for others' suggestions.
Lord Raziere herd I like Blasphemy, so Urpriest Exalted as a Malefactor