Who is better coyote star exclusive o hollow ichigo esclusive

Zento-Hazashi

With these exclusive skills for both of them, Starrk fully becomes this offensive vanguard by attacking all with high damage, while Hollow Ichigo becomes a fully defensive vanguard by giving himself defence buffs and healing, so it's more of what you need than a normal "who is better" kind of question

For just a Vanguard that will help themselves in battle and do their own damage individually, Starrk's exclusive is better, but only becomes better at max exclusive level

But if you want a skill that will compliment your team and fit more into the defensive role as a vanguard then it would be Hollow Ichigo, since your team will have Yamamoto to do the "dirty work" in damage alongside Hikifune; there's no room for an offensive vanguard unless your Yamamoto is also lacking in damage or assaulters aren't your focal point in the team

When generally speaking, Hollow Ichigo's exclusive skill at max level with DEF + HP buffs is indeed more reliable than dodge rate/hit rate buff/debuffs, so Hollow Ichigo's skill is better than Starrk's when just looking at skill alone, but do keep in mind he only attacks 1 opponent compared to Starrk's "attack all" skill ^^