ABC tours is a touring company I always recommend. The tourguides they have are all native Arubans and know the island. I've recently done the new Batumba tour as well and it was a blast! You will have a great time.
Ps. It is by the way one of the cheaper full day tours in Aruba.
The full day covers more ground, you see the whole island and it's an 8 hour tour. The question is do you want tour around for 8 hours and see the whole island?
The Batumba goes to different stops you don't see on any other tour. And it's a 4 hour tour. The Batumba is a tour with music with a tourguide who narrates throughout the tour, you are also in an actual 6x6 monster truck. When the truck picked us up and other guests at different resorts people would just want to join us and climb on board. You have to see the truck to believe it. On the full day you follow the guide in his land rover and he gives the info at the stops. The Batumba is more like a party. More fun. My opinion.
Still their very different tours and both a great choice.