Bus or shuttle travel to Morelia

Hello,
I arrive in Zihuatanejo tomorrow. Yeah! The following Sunday, the 6th, I will be traveling to Morelia. I have always taken the bus there. I have a few questions if anyone has done recently.

Which bus service is best? I think I took Autovias double decker last time.

My friend says there is a shuttle from Xtapa to Morelia? Anyone take it?
Cost and times?

Anyone traveling to Morelia via car on the 6th? I would be willing to share costs.
I am vaxxed, boosted and already had Covid on Christmas.

Thanks.
barb

The only two bus lines from Ixtapa that I know of are Parikhuni and Autovias.

Not real recent, but took Parikhuni in 2019. A travel agent advised it is the more luxurious of the two. Very nice for a bus. We sat up front on the upper deck. Took a while to get used to passing methods used on the highways here!!