All prices are based on Amazon.
Audio Techncia BP40 (Full Loaded $547)
Microphone #1 Was Audio Technica BP40 Large-Diaphragm Dynamic Broadcast Microphone is $349. The Audio-Technica AT8484 Shockmount for BP40 is an additional $99. I would recommend the Rode PSA1 Arm ($99)
Heil PR40 ( Fully Loaded $495)
Microphone #2 Was the Heil PR-40 Dynamic Studio Recording Microphone. There is a nice bundle with a boom arm and shock mount Heil Sound PR 40 Dynamic Cardioid Studio Microphone Bundle with PRSM Shock Mount, PL2T Overhead Studio and Broadcast Boom Mount and Microphone Cable for $479. You would still need a pop filter or Wind Screen
I had set the volume the same for all microphones and found them all were about the same. You might want to pick up a Fet head to boost the signal of the PR40
Electrovoice RE320 ( fully Loaded $507)
Microphone #3 is the EV RE320 Variable-D Dynamic Vocal and Instrument Microphone which costs $294. The Electro-Voice 309A Suspension Shockmount (for RE20 or RE27ND) is $99. Here again you need a pop filter, or a Windscreen and a Rode PSA1 boom arm.
Why Did We Hear Microphone #3 Twice? (the RE320) because it has a bass roll off switch, and for me (my opinion) I thought that was the best of the tree. The first two (to my ear) sounded almost identical. I love the shock mount for the BP40 (it is specially made for the microphone and makes getting the mic in and out super easy.
According to my kitchen food scale, the RE320 was the heaviest at 1.7 lbs, the BP40 was 1.66 lbs, and the PR40 was only 13.7 oz.
Here again, there is no bad choice. I use the Eletrovoice RE320, and none of the other microphones moved me to lose this mic. In the end the difference between the three was minimal in my non “audio snob” ears.