Army Configuration Help

I have a pretty solid Troop Setup, consisting of: (all Level 4)
84 Barbarians
75 Archers
25 Goblins
8 Wall Breakers
adding up to my total of 200 max troop space. I also have 3 Rage spells available, but I usually don't use them (on rare occasions I use only 1).
What I want to do is add some Giants into the mix, as I think that would help out my army greatly. I was thinking I should take out 20 Barbarians and add 4 Giants. What would you recommend?

P.S. I am farming, so I do not care whether or not I get even 1 star.

My opinion..

4 Giants will help a lot less than 20 barbarians. You either use only giants or barbarians. I found that mixing them is baaaad (or I just dont know how to use them together).

I used to have the giants + healer combo... Which works pretty well.. But its pretty expensive.

I've rearrenged my army to 70 archers, 60 barbarian, 60 goblins and WBs... If used well.. The barbarians are the perfect meat shield as they work very well to distract splash attacks.. Giants will most likely group them by a defense and be slaughtered by mortars and wizards.
The rest you can leave to the archers and goblins.

Wizard Towers are my greatest enemy, but I have found that 2 Giants in two different places followed by 10 archers can quickly take out a WT. Right now I have to keep sending in Barbarians to support my Archers.