My current army is 3 ballistas, 5 heavy royal companions, 20 crossbow men, 2 sabotage, 1 protection, and whatever my alliance donates and usually max javelin guys (18). And I'll 90% get 4 stars each attack.
I think you need to tailor your army based on what you want to accomplish. If you really do want to drop medals in order to get a lot of rss then raiders are essential to that end. But if you want to take things extremely slowly and just for pure fun 4-5 star bases (then subsequently get rid of those medals gained), then expanding the army a bit can work (I regularly deployed 15 archers, 6 HC, 6 raiders; sometimes reinforcements, general, miner; just about never mercs, tactics). I spent a disgusting amount of time in GP, but it became relatively stress free and I could upgrade at a slow, but regular, pace.
That being said, training blessing is honestly awesome sauce- mainly because I personally feel I can maintain an acceptable level of play with minimal frustration and less raiding time. If you want to really grind it out and progress faster, you'll probably want to take a more aggressive approach with raiders, as has been suggested.
Also- you'll need to raid more than 3x a day to get any meaningful rss; that is just too few raids to make you anything substantial.