The only MG's I've tried were "Star of Yelta". I loved the blooms: they looked liek they had a glowing light bulb hidden at the base of each throat.
They didn't reseed - perhpas the cinstant drizzle helped them rot. Certainly it was toguh to collect seeds in fall: more like collecting musy MG pudding.
Also, I was still amending that soil in that bed and turned it 12" deep while adding compost etc. Now i have some perennials there, and MGs might reseed if I tired again.
However, that MG spread the first year, worse that indeterminate tomatoes! It covered the bed horizontally, and zoomed right up to the top of the support I built for it. I kept winding wandering tentacles back into the trellis to keep it from invading the Sudetenland.
Big plant!
