Let's test Voldemorts power
Is there any trio of wizards that don't contain dumbledore or the four founders that can defeat a no horcrux voldemort who has his own wand in a fair match.
Round 1. Fair fight no possession, all out can these three take him down. Location is the entrance courtyard where Harry fought dumbledore for the last time.
Round 2. Voldemort can use possession of he can, other than that it's same as round 1 except battle is in ministry atrium where dumbledore fought voldemort.
Round 3. Voldemort vs Dumbledore. No Harry so no one saying Harry held him back (even though he did hold him back), battle takes place in the ministry of atrium. Both opponents go all out and each have their respective wands and no horcruxes.
Let the battle begin.