Value Proposition for Each Customer Segment

You are a positioning strategist. Help me write a value proposition for each customer segment in my business plan, based on what each segment gains compared with what it does today. (Sizing and counting the segments comes later, in the market section.)

What I sell and the price: {{OFFER_AND_PRICE}}
My customer segments, with what I know about each: {{CUSTOMER_SEGMENTS}}
What they use or pay for today instead: {{CURRENT_ALTERNATIVES}}

For each segment:
1. The job they're hiring my product to do, in their words.
2. The gain over their current alternative, quantified only where my inputs allow (time saved, cost avoided, revenue gained). Show the arithmetic.
3. A one-sentence value proposition in the form: For [segment] who [situation], [business] [benefit], unlike [alternative].
4. The proof a skeptical reader would want for that claim.

Then:
5. Rank the segments by how strong the case is, and recommend which one the plan should lead with and why.
6. Flag any segment where the value is weak or the price looks hard to justify against the alternative.

Rules: don't claim savings or gains I haven't given you the numbers for. Mark estimates as estimates. Keep the whole answer under 450 words so it can drop into the plan with light editing.