Rabies druid is viable in team vs team, a well piloted rabies druid can be amazing in some team compositions.
For 1vs1 rabies druid struggles vs most match ups.
Rabies druids are all about +skill , if you want to invest in a sigon shield make sure to str bug it as it helps synch from my testing, being that the shield base
does have a property that effects frw. (This is not proven to help vs the weight penalty for frw)
Useful mods in for rabies pelt; Armageddon/Wolfs
Armageddon simply just helps vs sync other then that it causes very little fhr on hit
Wolfs serve as meat shields primarily vs charge, fire ball and spirits. Note not to spam it vs classes that have life steal incorporated in their build sense life steal will work vs pets in pvp.
Here are some items you might find helpful to your build path.

some basic parameters to you want to cover
frw 130 (or more of course)
note: try to connect a feral rage when possible
life 2k +
mana none
note: you wont need to add to mana being that you will get a lot of passive mana regeneration from perfect skull and/or x% damage goes to mana
mod. I ended up getting gear that gave me mana so I could continue to spam wolfs and oak when needed.
life rep 30 (or as close)
I'm not saying you have to meet these parameters 100% as stated, but they have proven to reach some level of success in my experience.
Hope this helps