Who is Sonic's BFF?

I'm curious, can you tell me who Sonic's BFF, or Best Friend Forever, is? It's a question that has been on the minds of many fans of the iconic blue hedgehog, and I'm eager to learn the answer. Is it Tails, his loyal fox companion who often assists him on his adventures? Or perhaps it's someone else entirely? I'm sure there are many opinions on this topic, but I'm particularly interested in hearing your thoughts on who you believe Sonic's closest confidant and companion truly is.