Walking into gym with set plan or feel-sets?

[Gurrman]

What's your opinion on
A/ Walking in the gym, with a set plan (a amount of sets x b amount of reps), no more and (hopefully) no less, ex.
squat
100x8
120x5
130x3
out

or B/
Walking in to the gym, and working out accordingly to how you feel, mainly in terms of strength, that day, which either will allow you to push past the boundaries set by A/, but could in the long run make you plateau due to "excessive pushing"

[SUAS]

Go in with a plan, going by feel is a good way to not make progress

[thankujebus]

Feel, I don't like being told what to do and that's why I don't feel like I could dedicate myself to a set routine.
Put on 16 pounds since beginning of January. Also it's better for time as if you plan to do a exercise and that machine or something is taken, you can work round it.
My opinion, inb4 your opinion is wrong

[Jaggded]

if i can lift more, i will. i dont believe in following a routine written on a piece of paper. you know your limits, and you should know when to push them, and when you can.

[Jderavian]

Plan it out. You only continue to build muscle through progressive overload and if there is no plan there is no progressive overload. If you were planning to do 5 reps and feel like you could do 6 then do it, sure, but not if it will affect the rest of your workout because you tired yourself out.