Now that I voted and read what everyone had to say I'll throw my
worth in.
First of all I think that using PPS is completely unnecessary. You are starting out and you want people to recognize your name which is an excellent reflection of your business in this particular case.
The reason I chose number 6 is for the following reasons...
1. Your name stands out very clearly.
2. Your shaking hands logo conveys a message of trust and personalizes the logo.
Number 6 conveys a very strong imagery but I would consider removing the PPS and centering the shaking hands.
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