Based on the total ratings, the horses in the Boodles Yorkshire Cup Stakes race can be ranked as follows:

1. Quickthorn (Total Rating: 525.4)
2. Siskany (Total Rating: 513.3)
3. Eldar Eldarov (Total Rating: 494.6)
4. Broome (Total Rating: 484.6)
5. Giavellotto (Total Rating: 428.1)
6. Get Shirty (Total Rating: 358.8)
7. Tashkhan (Total Rating: 334.2)

Starting with the horse with the highest total, Quickthorn stands out as the top contender. Based on its total rating, it appears to be in excellent form. The comments suggest that its front-running strategy has delivered significant dividends in the past season, and it’s anticipated that it will put on another bold show in this race.

Following Quickthorn is Siskany with the second-highest total rating. The commentary implies that this horse could potentially reverse placings with Broome based on their performances in the Dubai Gold Cup. Although its total rating is slightly lower than Quickthorn’s, Siskany is still a strong contender in the race.

The third-ranked horse, Eldar Eldarov, was a St Leger winner and is touted as a good prospect for top staying races. It’s worth noting, however, that the horse will need to improve as it will be giving weight in this race.

Broome is the fourth-ranked horse and seems to have potential as well. It was narrowly defeated by Siskany in the 2m Dubai Gold Cup. The comments suggest that it is unexposed as a stayer, which could offer some room for improvement.

Looking at horses with lower ratings but positive comments, we have Giavellotto. It was less than 3 lengths behind Eldar Eldarov in the St Leger but would need to show something new to win this race.

In summary, based on the ratings and the additional information from the comments, Quickthorn and Siskany appear to be the most promising contenders in the upcoming Boodles Yorkshire Cup Stakes race. However, Eldar Eldarov and Broome also have potential, making this an exciting race to watch.