I am doing a forecasting for corona virus cases in NY, I have two models and not sure which one i should choose
I will suggest, first take some training data and make both models on that and compare the result on test data e.g

If you have data from 1st Jan 2020 to 28 Apr 2020.

Give the model, data from 1st Jan 2020 to 31st March(Or you can decide another range), make the model and forecast for April month.

And compare the results for both the models on April month(1st April to 28th April).

In this way, you will be able to argue better with results.