Many of your observations are not factual or miss the point. For example, Watchtower has described Jesus as “our Lord” many hundreds of times, as any search will show.
And JWs do use the biblical phrase “God the Father”. What they don’t do is follow the Trinitarian inflection of pairing it with the non-biblical phrase “God the Son”, and the habit of divorcing the phrase from its context, such as instances where Paul refers to “God the Father of our Lord Jesus Christ” showing that even as Lord, Jesus looks to another as his God; or 1 Cor 8.6 where “God the Father” is equated with the “one God” of the Bible, rather than merely one person of the one God, as per Trinitarian dogma.
And JWs agree that Jesus was in Hell/Hades for three days, they just have a different understanding of what that means.
In all I think JWs could agree with most of the Apostles Creed. There’s no Trinity in it at all, which is striking, but should not be entirely surprising because the Trinity hadn’t been invented yet.