I would offer a different perspective, and please don't let it offend you-
I would ask you
this question: Why would you let a group of strangers, despite their experience and knowledge on a vocation, determine your choices or path in life? Are you lacking the confidence in yourself to make good choices? Do you believe that a forum habited by some industry professionals can know whats best for you? I don't think so.
If you were my son (and I have 3) my advice (since you're of a similar age to 1 of them and he's gotten it from me) is: do your own damn homework, talk to the administrators at the school, and speak with the employer about what you will be doing, what you will learn, and the environment in both situations. Then you choose. Just like you will have to learn to do very soon after Mom and Dad kick you out of the nest and into your own life.
Its not meant to be harsh or criticism, its meant to teach you that, a job can be a job. A career is made from choices, determination, and sometimes numerous employers. Even if the job sucks, you can learn, benefit, and demonstrate your unique qualities that make you a desired employee. Whether you have the "extra schooling" matters little. You will need professional certifications in this industry and those may not come from your Tech School. If they do, consider that.
Work your butt off no matter where, what, or how little you get paid. It is the single distinguishing feature an employer notices. Head down, mouth shut, and ears open. You learn 2x as much by listening as you do by talking. Thats why we were born with 2 ears but only 1 mouth.
You seem determined to become a professional welder. Rely on that determination to insure you feel you have extracted everything you can from your education. Then go forth, and be the welder you aspire to be. 1 Year in school or an Apprenticeship will NOT make the difference in this.
Hopefully you can decipher the answer within this diatribe.