I just looked at the disposable lighters I have in my organizer. I used to smoke cigarettes, and use them for Cigars in the winter... they also come in handy to melt nylon loose threads opn bags/clothing or cut nylon straps. I just pick up what's available at the gas station or 7-eleven when I need one. Interestingly enough, none of them are Scripto or Bic, although I don't know if the brands stamped on them use one or the other company.
Personally, I like the clear adjustable ones to both see how much fluid is left, and to adjust the flame height when needed. You can also take them apart to adjust the flame even higher. This can be beneficial for, example needing a higher flame to go over the side of a pipe. I know the lighter fluid taste might ruin the tobacco flavor though.
On the flip side, I have small, white Bic lighters in my tool box, emergency kits, and sometimes in my EDC pouch (when I'm not carrying my cigar lighter). Of the colored lighters, the white is easier to see the fluid level in (after I take off the sticker).
I have had the adjustable lighters go bad from long term storage... say 15 years. I haven't tested the longevity of the Bics. Occasionally, some sort of corrosion will cause issues with the wheel working.... although I don't remember/know if it was a lead issue. This doesn't happen all the time, but out of probably 20-30 different disposable adjustable lighters I've had over the years, I remember maybe 3 or 4 having this issue. It was usually a lighter that I used a couple times, put away, then a few years later find it in an organizer drawer and check to see if it works. Overall, the adjustable lighters seem easier to damage.