City residents who made presentations to councillors at the Marischal Square hearing have called for the plans to be referred to the Scottish Government.
Lorna McHattie, one of five people who spoke against the application, said there was “a consensus” on what objectors were arguing.
She said: “No glass boxes, keep it level, let us see the other buildings and keep things in proportion.
“It is frustrating, because I’m not so sure that it is not already a done deal.
“I think it should be referred to the Scottish Government, it seems there is a clear conflict of interest for the council.”
Margaret Hadley, who also opposes the existing plans, described the demolition of St Nicholas House and the subsequent opening up of Provost Skene’s House to public view as “scales from the eyes time”.
Prior to the 1960s building being torn down, the 16th century Provost Skene’s House was largely obscured by the office block.
The decision by councillors to opt for a hotel, office and retail development was made before the demolition process was completed.
Ms Hadley said: “With St Nicholas House down, if the planners had started from that point, then we might not be faced with glass boxes. I think the reaction to it would have been very different.”