I got to thinking some time ago that a rating system could be adopted for fishing guides somewhat along the lines used for decribing wines:
1 = ....Precocious, Light & Fruity with a delicate nose
( Floating lines only, everything "just-so" and please clean your boots before getting into the boat)
2 = Robust & Spicy with Oak overtones
( Former commercial fisherman turned guide, with rather too much fondness for Scotch whisky)
3 = Fat and faded with a flinty nose
You get the idea, like good wines, fishing guides come in all shapes and sizes - plenty of variety to cater to individual tastes.
Just remember that what's inside might not always be clear from the label on the bottle