  We study circular BPS Wilson loops in the $\mathcal{N}=2$ superconformal
$n$-node quiver theories at large $N$ and strong 't Hooft coupling by using
localization. We compute the expectation values of Wilson loops in the limit
when the 't Hooft couplings are hierarchically different and when they are
nearly equal. Based on these results, we make a conjecture for arbitrary strong
couplings.
