I may be biased, but I would say without a doubt Ray White (on the corner of Whitehorse and Mitcham Roads).
They have a great property management team, and are very helpful if you are looking to buy.
And if you are selling - the auction team has sold 35 out of 36 auction so far in 2013 - the best clearance rate in the area!
I'm a local agent with many years working in the Mitcham and Whitehorse areas.
I have leased and managed hundreds of properties in Mitcham, so please if you would like any info on the area don't hesitate to contact me.
My sales Principal Chris Watson is excellent as well if you need advice about selling or buying a home.
Monique Holgye - Ray White Ringwood (0410 086 801)