Stacking UV -> step-up rings -> other filters?

Hi all,

I see that a common approach is to get step-up rings so that the same filters can be used across all lenses. Out of curiosity, considering I would like to keep the uv/clear filters on at all times (protection, I shoot in questionable conditions), should I do:

1. (lens) -> step up ring -> uv/clear filter -> other filters where applicable; or
2. (lens) -> uv/clear filter -> step-up ring -> other filters where applicable?

I am leaning more towards option 2 so the lens may be as "compact" as possible if no filters are being used (e.g. removing the step-up ring), however I'm worried if this will cause vignetting. Additionally, I'm also curious if this kind of setup gets in the way of using lens hoods?

Thanks all!