The P32 (P30 is the truck chassis) is the most problematic front end of the 2 MH chassis. It has the most moving parts to fail and they do.
Robert Henderson of
Henderson's Line up has made a very good living correcting the failings of the P32 front end.
Both the P32 & the F53 can be made to drive well. Most owners try and throw all sorts of steering enhancements at them before finding the real problem. Thus they never drive correctly. The F53 responds well to correct toe-in and a front pan hard bar. The P32 responds well to correct alignment and Henderson bell cranks. Those with poor handling MH, that have paid for alignment, never tell you what the toe-in was set at. As an example, my 95 F53 calls for +/- 16" toe-in. No "I" beam axle will drive correctly unless the toe-in is set to a strong positive toe-in.
So if all your concerned about is handling, both chassis can be made to handle well.
Richard