The best 45 mould I have is a Lyman 452374 which is a 225 gr RN. It's trouble free and easy to load and absolutely reliable. I have a 6 cav lee mould that is very similar which is just as good but 6 cav so perhaps better for that reason.
I had trouble getting the H&G #68 style 200 gr SWC to work right. It's finicky to load with (for me).