I said the SSPX is more effective in contributing toward the salvation of souls worldwide and therefore in my opinion is the best traditional order worldwide.
Your opinion on the effectiveness or spiritual good of an order or church is irrelevant as a layman. You have no rights to decide these questions, per Canon Law. You have a moral obligation, under pain of mortal sin, to be under jurisdiction of your local Bishop, if you believe he is a valid Bishop. You have the moral obligation, under pain of mortal sin, to attend mass at your local diocese. Those who accept the local diocese as valid must obey their local bishop or you're a schismatic and will go to hell for disobeying Church Law.
I don't consider the others non-Catholic, but less good. The need of the hour is at least 10,000 traditional Mass centres every Sunday if not more frequently, and all traditional orders combined have not reached that yet. I don't consider the SSPX outside full communion, so that's just a strawman that is gratuitously asserted.
If you consider the local diocese and all new-rite bishops to be 1) valid and 2) hold jurisdiction from the pope, and 3) provide valid mass/sacraments, then you have no excuse for attending the sspx, no matter how orthodox the diocesan priests are or aren't.
You reject every argument that Traditionalism makes for why they are Traditionalist (and the new-sspx increasingly does the same). Therefore, your attendance at a Trad chapel is baseless and sinful (for you). It is not sinful for true Trads because we find quasi-heresies and doubt where you do not.