well, they are both not really good. But at the level you are in, right now that does not matter much.What matter is that the 2nd driver is at 85% health vs 48% for the other
At level 5 you probably should be searching for higher talent drivers. Since you have a premium account click on skills view and then click on the TAL header twice so that the higher talent drivers are brought to the front. After that search for drivers that have the Speed characteristics of Fast, Slow, Wet that are even and fairly high. That means that someone else has already trained them somewhat. Second check for Stamina and Reflexes that are even and fairly high. Then look for higher health. Low health can make even the best developed driver slow.
We can't tell them everything but something might be nice.
THERE are beter drivers in the market only need time and patience, to find 1 by one. Not all roster of course.
But when you are level <9 i should recommend to use temporal driveres there are some good drivers to start to train at level 8>.
I recommend you health more than 75%, weight less than 65kg and higher levels of talent... Acept only low atributes in young drivers. (supose you will train in each season)