If you just want civilians to vote for the cheaper bottles, then your strategy makes sense. Better still, put in a $200 Bordeaux, Barolo or Burgundy.
But if you genuinely want to see if they can tell and which they’d like, it makes more sense to stay within a general style. Make the $200 bottle a Schrader or something like that. Or make the lower priced bottles Lanessan and Mount Eden or something.
I would go pure sangiovese for this tasting because, as John Morris notes, if you’re going three totally different types of wines and styles, the tasting results will be largely irrelevant. If the idea is to compare quality at price points, go with a $20 chianti, an $80 chianti classico riserve from a top producer, and then a Fontodi Flaccianello
2017 Daou Cabernet Sauvignon Paso Robles. $20 at Total Wine with a 92 point score from Parker. If they like Caymus this will be 1/5 the cost for relatively the same style wine…
I’ve never had a good $20 cab. With $35 and a sale, I can think of some good ones.
Here is a good Cab Blend that is not good but excellent!
$10.50 on their sale last December and will have another one soon which I will post.
2008 Davenport Cellars Continuity - USA, Washington, Columbia Valley (2/18/2020)
Day 1: Decanted some sediment and this wine is awesome. Cherry, plum, menthol, spices, blueberries and perfume. A bit different than the last 2 bottles as this is showing more fruit but is gorgeous. Medium plus finish. 92 points
Day 2: Excellent on day 2. These wines have a ton of aging potential. Blueberries, cherry, spice, earth, menthol, mild oak and vanilla. Beautiful wine. Medium plus finish. The fact this is better on day 2 should indicate another 5 plus years of aging. 93 points
Day 3: The notes on the sludge impacting the wine are confusing. Many wines over 10 years might have a little sludge on the cork which does not impact the quality of the wine. This wine is glorious on day 3. Beautiful example of the top vineyards in Washington coming together. Menthol, bright fruits featuring cherry, blueberries and plums. Spices, floral and mild oak. Balanced and medium plus finish. If you could find a Cabernet Blend in the world for under $15.00 this good then please let me know! 94 points
Recommendation: Buy this when they have their sale in late March/early April. (94 points)
I went to the BevMo in La Jolla while on vacation (what a deplorable wine selection) and walked out with this, never having tasted it. Here’s my TN: “This was a little too sweet for my tastes. Sweet blackberry juice. Not bad, but just not my cup of tea. 84 points” So…what you say sounds about right!
Go all the way with Two Buck Chuck. I set up a blind tasting on a dare of that versus a random $15 cab I also got at trader Joe’s. I left the room, one of my partners poured two glasses, I returned, sniffed the glasses and didn’t even have to taste. It was PAINFULLY obvious.
I would second (or third) the recommendation to go with a Sangiovese in the under $20 range specifically from the 2017 vintage which are highly approachable right now. Vopaia is wonderful and ready to drink with a couple of hours of airtime. You might want to throw in the 2017 Tenuta Sette Ponti Crognolo Super Tuscan as a ringer which is under $30 and is mostly Sangiovese with a splash of Merlot.
Focus on style first - otherwise it would be difficult to develop a meaningful comparison. I’ve done this previously with Sangiovese (from simple Chianti, to Riservas, to Grand Riservas). It’s also good to do this with Rioja. You could have a great line up with the many bottlings of La Rioja Alta or Lopez Heredia.