Hi
How I mix rock and hard rock music to provide power is:
Create 2 buss tracks, I call them Guitar Main and Guitar PP (parallel processing)
On your audio track route them to the Guitar Main and Guitar PP buss
On both those tracks cut the low end with a filter to remove any rumbling
Turn the volume down on the Guitar PP track whilst recording and playing back and keep it there until you have all your guitars sounding good in the mix.
On the Guitar Main add a bit of light compression to glue the tracks together
When you are happy with your recorded guitar tracks:
Adjust the compressor until your are happy with the Guitar Main
On the Guitar PP put a hard compressor and compress the crap out of it, use extreme settings.
Use a compressor that allows you to EQ the signal too but if you don't have one add one before and after the compressor and remove the low and high end so you are only compressing the mid range.
Once it is compressed start to turn it up until you can hear it thicken the guitar then turn it down a little.
To do this I use Fabfilter or the WAVES renaissance Compressors. Prefer the Waves but it requires an eq. For eq the stock plugins in Cubase are good but I again prefer Fabfilter as you can do an eq matching.
One thing that will happen when you do this is the drums can become weak sounding so do the same process on drums too. This also works great on Bass, in fact anything.
Sorry this was a convoluted explanation but to be honest I spent so long trying to eq and compress and use loads of plugins to get guitars to work and in the end this was the least complex option that worked for me without battling with downward changes when you adjust something first in the chain.
I agree with both comments above, you can't be directed to what sounds best but you can have a standard way to do things. In regard to plugins don't go with 1 vender, there are loads of quality plugins that are free and not all plugins by all providers are good so pick and mix. Ones that generally get good reviews are Waves (cheap), Fabfilter (mixing) and Soundtoys (sound sculpuring)
One thing I do and was mentioned above is Reamp as it is frustrating to capture a great performance to only find the amp does not sit in the mix.
I have never used Logic so I am unsure what the stock plugins are like.
Regards
Mike