What "Class" Feast is the Holy Rosary?

John XXIII made most Sundays "Class II".  So the Holy Rosary would have to be a "Class I" Feast to replace it.  Otherwise, I think you'd do a commemoration.  I'm not sure what happens in the case of a tie, if they're both "Class II".

Any Liturgical experts out there?

I am trying to figure out what Mass will be said on Sunday, October 7th. That Sunday happens to be the 20th Sunday after Pentecost, but it also falls on October 7, which is the Feast of the Holy Rosary.

Does the priest have a choice? Which one takes precedence over the other?

How about if the priest celebrates the mass of the 20th Sunday after Pentecost but also mentions the Holy Rosary in his homily?

Double  1^st Class (White)
^{Most Holy Rosary of the Blessed Virgin Mary}

John XXIII got rid of this designation.  Matthew follows the 1962 Missal, which would have this feast either as Second or Third Class.  My guess would be Second.  So it would be a tie for an ordinary Sunday.  Not sure how ties are resolved.  I used to know this stuff but can't remember anymore.  I would GUESS that in the case of a tie, the Sunday would take precedence, and the Holy Rosary would get a Commemoration.  But that's just a guess.

Any Liturgical experts out there?

I am trying to figure out what Mass will be said on Sunday, October 7th. That Sunday happens to be the 20th Sunday after Pentecost, but it also falls on October 7, which is the Feast of the Holy Rosary.

Does the priest have a choice? Which one takes precedence over the other?

Sundays in Pentecost are 2nd class feasts. Sundays are the Lord's day. Any feast of the 2nd class like the rosary would have a commemoration in the Sunday Mass.

John XXIII got rid of this designation.  Matthew follows the 1962 Missal, which would have this feast either as Second or Third Class.  My guess would be Second.  So it would be a tie for an ordinary Sunday.  Not sure how ties are resolved.  I used to know this stuff but can't remember anymore.  I would GUESS that in the case of a tie, the Sunday would take precedence, and the Holy Rosary would get a Commemoration.  But that's just a guess.

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Maybe a "tie" should be resolved in favor of how the Church did things before the unclean spirit of Vat.II corruption set in.
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Perhaps you're unaware of the history, but even ABL was reverting to the longstanding tradition of the Church before the Bugniniite Modernism was forced down our throats, but along the way under controversy with dissidents and in order to negotiate with Newrome, he capitulated to using the 1962 Missal and rubrics. Furthermore, you are taking orders from Newrome when you use the 1962 Missal and rubrics, just like the SSPX does, so you're not really in the Resistance with the '62 Missal. You're not resisting at all. You're going along to get along, like the FSSP, Redepmptorists of Orkney Is., SSPX, Campos, Brazil, and others who have been or are in the process of being swallowed up by Newrome.
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There are still a lot of TLM priests who continue to use the pre-1955 rules, adhering to the principle that when a crisis arises, the safest tack is to revert to the last securely known method, and there is no question about how securely known the pre-1955 calendar was. The first wave of attacks came on the Holy Week prayers, which had been in continuous use since Apostolic times. The Modernists severed ties with the oldest prayers in the Roman Church from the start, in order to get the ball rolling.
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So if you're going to use the 1962 missal, then go ahead, but you're going to be facing these kinds of conflicts and challenges every year, on different days of the year for different Feast Days. You won't have as many Scripture readings (which the Modernists designed so they could then complain that there were not enough readings). And depending on which choices you make, and which choices other priests make, there will eventually be as much variety in how one ought to say Mass as the Protestants have in their so-called worship services.

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Happy anniversary, Mr. & Mrs. Ladislaus!

Thank you in advance, Neil.  Feast of the Holy Rosary is October 7th.  It'll be 18 years.