PolyPri.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

public class PolyPri : MonoBehaviour
{
	void Start ()
	{
		MeshFilter[] myMeshs = FindObjectsOfType (typeof(MeshFilter)) as MeshFilter[];
		List<MeshFilter> myMeshList = new List<MeshFilter> ();
		for (int i = 0; i < myMeshs.Length; i++) {
			myMeshList.Add (myMeshs [i]);
		}
		var lengths = from element in myMeshList
		      orderby element.mesh.vertexCount
		      select element;
		
		foreach (MeshFilter value in lengths) {
			print(value.gameObject.name + " " + value.mesh.vertexCount);
		}
	}
}