The Crusader longbow is my favorite, but the Thunderbird is similar--maybe a tad slower than the Crusader, and obviously available in shorter lengths. The Longhorn might be a tad faster than the Crusader, but not quite as forgiving as it or the T-bird due to the reflexed riser--it's going to be more sensitive to form errors, especially torque. All three draw super smooth, and with proper tuning very quiet and very low hand shock.
If the flatbows were made in a 64" or 66", I might pick one of them instead of the Crusader--but I like a little longer bow for my 30.5" draw length.
Chad