Ipswich Jets prop Nathaniel Neale was named the competition's Player of the Year, winning the Petero Civoniceva Medal.
Redcliffe recorded their first four-pointer in the 16th minute when a late Cameron Cullen offload found fullback Trai Fuller who muscled his way over.
Easts hit back in the shadow of half time when Marion Seve scored out wide to cut the margin to four points.
They extended their lead in the 46th minute when a Donovan grubber was kept alive by Aaron Whitchurch, who batted infield for Staggs to score.
In the 62nd minute, Redcliffe all but sealed the win when Donovan set up another try with his boot, this time finding Nathan Watt who dived on his grubber.