Have to agree with Jonathan.
Was the same B747 vs L1011 in the eighties, then in the 90's the -400 got the best rosters. 'bus was okay into the noughties while the 340's were flying, the B777 ate sh*t. How time changes!
I've flown them all, some good rosters, some bad. Like Jonathan said; get some time in - no instant gratification here.