Alakazam and Espeon Compared to MewTwo

i think alakazam solo dps is pretty comparable just more fragile. I'd be tempted to power that baby up just cause useful and perfect.
I myself want to replace my exeggutor in my machamp squad and who knows how long it will be before we get mewtwo so am getting close to pulling the trigger on an espeon.

When you get Mewtwo, rare candies will be an issue and that is much harder to get than stardust. So powering up Alakazam as a backup Mewtwo is not a bad choice at all.