Engine problems on the Stik and you can float it in right to the ground. Engine problems on the Sportster and you can float it for a short period of time before it stalls. That plane needs to be flown in to land compared to the Stik. It's not bad but there is a difference and if this is all I had to work with I'd put the stronger engine on the Sportster.
I'd rather have an overpowered Stik (I have a few) as that will be more fun in my opinion and you could fly the Sportster with the weaker engine but I wouldn't do it. LA engines  are good for trainers and Cubs.