1999 Caravan Brake Problems

I love my Caravan, but brakes have not been a good point. This is a SE with
the 3.3 liter V6.

First both rear drum brake wheel cylinders needed to be replaced at 30,000
miles due to brake fluid seepage. At that time I replaced the wheel
cylinders, bled the rear system, replaced the front rotors (turned the
rear), and all the brakes with Raybestos PG plus pads & shoes. I noticed
however that the front right pads where nearly down to the rivets, and the
left front had much more meat left (almost 2X).

The van ran fine for a long time afterward for about 30,000 miles until the
brakes again seemed to be less effective. Maybe it was a mistake, but I
replaced the front pads with the cheaper pep boys pads (ceramic) and I did
not turn the rotors. The old PG plus pads were evenly worn left & right, and
the rotors looked fine (did not mic them). There was still maybe 10,000
miles left on the old pads. The new cheap pads seated immediately, and
better braking was restored.

Now after only about 5000 miles the right front pads are down to the rivets
(rotor toast now), and squeaking away (at low speed when cold, and not
applying the brakes). Interestingly the left front side looks fine. I also
notice that after I park the left rotor is too hot to touch for at least 15
minutes after I park the van whereas the right rotor is much cooler.

So it seems that I need at least one new rotor, and quality pads. What is
bothering me is the uneven wear. Do I have a "sleepy caliper" that may not
be releasing enough (left front)? Even now the braking is good and even, no
left or right pulling. Taking sharp left & right turns does not seem to make
a noise one way or the other is if I have a bad wheel bearing.

Any thoughts?

Thanks in advance,
Jim Candela