Hey Friend accordind to my idea Samsung galaxy tabletis better than iPad is .Because it has severalreasons.
Galaxy Tab S has a Qualcomm Snapdragon 800 chipset with a quad-core 2.3GHz Krait 400 processor and an Adreno 330 GPU. It comes in a 16GB and 32GB internal memory variants and comes with a 3GB RAM.
The iPad Air on the other hand has a 32-bit A7 chipset and is run with a dual-core 1.3GHz Cyclone CPU which is ARM v8-based and has a PowerVR G6430 GPU. It has four internal storage offerings – 16GB, 32GB, 64GB, and 128GB – and has 1GB RAM. Because of these reasons Galaxy Tab is the best.