It seems you really like your share of abusive relationships XD
OKAY THAT WAS BAD SORRY BUT jokes aside,
No one really likes playing support in lower elo because it's a role where you need to rely really heavily on your teammates. A support cannot carry a game, unless you're playing tanky/damage heavy ones such as Annie, Alistar, or Leona, so playing support may not equal a good chance at winning. However, it really depends on the immediate synergy of you and your ADC. You have less than 5 minutes before the game starts to synergize (fuck, that's not a word wtf) with your ADC and really understand how they play. Not all ADC's are understanding but not all are super mean. The laning phase is really 60% of the support and 40% ADC. As a support you have to look out for them and find openings to engage or know when to disengage and get your ADC out safely. If something happens, you or the jungler will most likely be blamed and that's probably not a good thing since you like both those roles.
As a jungler, it's a lot of responsibility (I hate jungling because I always have three people asking for ganks simultaneously) and many people don't like that. Others however like jungling for its solitary feel and lack of commitment to a specific lane. I think jungling is a more rewarding role in soloq because you can be what helps the ADC get fed, and you can actually have a much bigger effect on the game overall than the support. Most junglers will go for a tank build which is so important when neither your top lane or support will do it.
**TL;DR: ** Jungling has a better chance of being able to carry, unlike supporting; but supporting is an easily acquired, almost guaranteed role.