Palkia would be interesting if it's Shiny! Otherwise I'd personally prefer Dialga as I didn't manage to do many of those back when they were around and for Palkia I have a 100%. Though if Palkia does return next, I'm sure that they'd have Dialga come after that so I'd be fine with it! Yeah same here for raid hour, Heatran is one of those where I just don't seem to be lucky with for a Shiny.