Favourite exercises at the moment Dumbell bench press and reverse grip single hand tricep pushdown (or pulldowns becasue of the reverse grip)
I have a damaged left shoulder and barbell bench really agrivates it, whch is s bitch bcause i used to love barbell bench. Reluctantly i changed over to dumbell bench wih a sligt incline, which dosn'e bother my shoulder at all. I noticed i get a much better feel for the chest muscles with the dumbells and i have really taken to them now. Can't lift as heavy with the dumbells but i just don't care any more, i just love the exercise

With the reverse grip cable push down i get a really great pump in the whole of the tricep region and can feel the muscle from start to finish.
Don't really have a least favourite exercise at the moment. I used to hate squats. I have poor flexibility in the hips and feet and always struggled with squats, but i just kept pushing and while i may not the be best squatter i have learned to really enjoy doing them.