Had JFK-HKG-HGH 2 oneway award tickets CX831(Z/F) conecting in HKG KA622(U/J) with an hour and 10 minute connection time. While waiting for CX831 at JFK, an hr before boarding it was announced CX831 would be more than two hrs late and we knew we would miss our connection in HKG. Talked to CX folks at JFK and were told to relax and eveything would be taken care of and we would be booked on first flight out of HKG to HGH the next morning. Landed in HKG around 9:10pm We were first to be off the plane but were told they rebooked us on 12:15pm flight to HGH. We raised our concern but we were told to wait. 3 cx members took their time processed all the passengers of the flight and then the mananger came back and offered us Y seats on the first flight (7:50am) out which we took since afternoon flights to HGH tends to have further delays. We were given a hotel overnight stay at marriott skycity. Some questions:
a. Couldn't CX booked us J on first flight out of HKG while we were at JFK and communicated to us, a good 24hrs before knowing we would miss our connection? They insist we to relax and let them handle it in HKG and yet the solution provided was not to our satisfaction.
b. Had us wait until the very end of the processing queue. I understand they had other passengers to process so that they can make their connections but make F customers wait until the very last to be processed seemed odd. Many passengers on the flight were stranded but we were put at the very end of the queue. Was it because we complained about their initial resolution?

c. CX agreement with Marriott seemed that the hotel only had to provide a room so we were given a smoking room. I had to argue and argue with a Marriott manager to give us a non smoking room. We didnt know we were given a smoking room until 10 minutes into our room and our throats started to hurt. We eventually got into our none smoking room at 11:15pm.

d. We would finally get to our destination 12hrs late with last leg downgraded, are we entitled to any cash comp besides the bus ride to/from the hotel and overnight stay (not really interested in their one class upgrade vouchers that can only be applied at the airport since last one didn't work)? This delay didn't seem to be caused by weather.

Thanks.