I've tried most 30YW and ECW figures in 20mm and 1/72, the Tumblling Dice was nice, but I stopped, glueing heads on just was a chore, and quite frankly they have that metal look of figures with not so good proportions, and expensive. The Zvezda were perfect, but attaching small 1/72 hands with pikes and the large size put me off that brand too. Been thinking of a 3D printed line, if it's possible to use ringhands. The Revell ones were perfect, no assembly and perfect size.
I was lucky to be sold several sets of the Revell TYW collection at a very nominal price about 4 years ago. These form the basis of my Renaissance wargaming armies.
The ACTA ECW figures are a useful addition as is the Mars figures. One of my Covenanter Horse units is Mars with Tumbling Dice heads....fits in perfectly.
Metals are Tumbling Dice with a few Hinton Hunt, Warrior & others.
My small Parliamentarian army is all plastic, as is half my larger Royalist force. My Covenanters are all metal & I think they match the plastics well. Indeed, I have a Covenanter Dragoon unit with 5 figures per base. All but one figure are TD. The extra figure is ACTA (with a TD head) & I challenge anyone to pick it.